Peaches

January

about



Peaches (Prunus persica) have a long cultivation history. In China, peaches have been consumed for thousands of years. However, it was the Spaniards who introduced these stone fruits to the new world in the 16th century when they landed in Mexico.

Stone fruits include peaches, nectarines, and plums. The term “stone” refers to the seed enclosed in a hard pit surrounded by soft flesh. P. persica refers to both peaches and nectarines with the only difference between the two being that nectarines have smooth skin while peaches have a distinct “fuzz”.

Peaches come in two types of flesh-color, white and yellow. White peaches generally have a sweeter taste and lower acidity, relative to the yellow which has a hint of acidity that balances the sweetness. In the United States, Americans tend to prefer the yellow-fleshed peach and, fortunately for Floridians, it is also the type that grows best here.

peach terms to know

Melting or non-melting: This refers to fruit texture. Melting fruit softens as it ripens and these types are juicy, stringy, and have a short shelf life. You usually find them at farm stands and u-pick farms. Non-melting fruits are firmer when ripe and have a longer shelf-life. They are often used in canning or processing but select cultivars can also be great for eating fresh.

Clingstone or freestone fruits: These terms refer to how strongly the flesh adheres or “clings” to the pit. Clingstone peaches have flesh that stays attached to the pit making it more difficult to remove the pit. When the fruit can easily peel away from the fruit it is called freestone. Melting varieties can vary in “clingy-ness” but non-melting types are always clingstone.

Chill Hours: The chilling requirement is the smallest period of cold weather (nighttime temperatures between 32° and 45° Fahrenheit) needed for peach trees to bloom. This is expressed in chill hours. Peach cultivars vary in the number of chill hours needed, ranging from 100 to more than 1000 hours. Chill units vary across the state of Florida and decrease as one moves southward through the state. Low-chill peach cultivars are those that need fewer chill hours (100–250) than those cultivars that originate from temperate climates. Moderate chill cultivars have been developed for north Florida, north-central Florida, and south-central Georgia and require higher numbers of chill hours (300–525). Alachua County historically has been in the range of 400-500 chill hours but in the last five years, Florida has experienced warmer winters and the number of chill hours on average has declined. It is now recommended to plant cultivars that are in the 300 chill hours or less range.

Peach trees are usually bought from plant nurseries. Trees with “Florida” in the name like Florida Crest and Florida Dawn are best suited to our region as they need around 350 chill hours. Other varieties are UFGold and UF2000, these need 200 and 300 chill hours, respectively. UFGold ripens around 80 days after blooming.

Trees planted in the spring can be expected to begin fruiting the following spring. Peach trees in the home garden can generally be expected to produce fruit for 8 to 10 years when well cared for.

planting

Peach trees are usually bought bare rooted or in three- or five-gallon containers. Before buying inspect trees for any signs of insects, diseases, or other problems and only buy healthy trees. Since bare root trees are grown in field nurseries and harvested during the winter months, they should be planted as soon as possible to prevent the roots from drying out. Containerized trees may become root bound, so loosen the root ball by removing soil and roots as needed. This will help improve soil to root contact and stimulate new root growth. Plant peach trees in a sheltered but sunny location and in soil that is well-drained and has been amended with compost.

When you plant the tree, remove the side branches and a few inches from the top. It will look more like a stick than a tree. The existing branches are removed because they will never get any bigger and will not produce a stable structure for fruit production. Pruning the first branches encourages growth of new, strong branches in a shape that will support fruit development and growth.

Once your young tree is planted, train it to have an open, soup-bowl shape. After the first two years, prune it twice a year. Trim the tree lightly during the early summer, saving heavy pruning for the dormant season. Look for your fruit to ripen in April or May. After the first two years, peach trees should be pruned twice a year – during the winter (dormant period) to improve the structure of the tree, and then more lightly during the summer, after harvest, to improve air movement and the amount of sunlight entering the tree canopy.

Pruning during the winter should strive for an “open center” or “vase structure”, with branches that grow at roughly 90 degrees to each other and about 45 degrees from the trunk. Thinning or pruning should remove branches that are thinner than a pencil in diameter or have no leaf or fruit buds on the branch. Branches with only fruit buds will not develop fruit as well as those on branches with both leaves and fruit. To minimize sunburn during the summer, do not remove all the branches from the middle bowl of your vase shape. If you imagine looking down at your tree from above, you should have branches spreading out 360 degrees.

Peaches bear fruit in the spring on one-year-old wood (wood grown during the earlier spring, summer, and fall). This is why annual pruning during the dormant season is important. Excess fruit should be removed as soon as possible to leave single fruit 6 to 8 inches apart.

care



Florida's frequent summer rainfall can provide favorable conditions for fungal diseases like peach rust. If the tree defoliates because of disease, it will bloom due to stress, producing fruit at the wrong time of year and be vulnerable to frost. Rust can be managed with common fungicides like sulfur. Fungicides also help prevent peach scab.

Squirrels and raccoons can also be a problem as the fruit ripens; damage can be reduced by netting the tree once the fruits start turning color.

Zinc deficiencies are often seen in Florida soils and can be an issue for peaches. Use a soil test to find out if micronutrients are low. If needed, micronutrient foliar applications during the growing season can be helpful in supporting optimum boron, zinc, copper, and iron status in the leaf. 


harvest



The period from fruit set to when the fruit can be harvested, is called the fruit developmental period, or FDP. The FDP of many peach cultivars in Florida is relatively short with some ready for harvest in 60 days from fruit set. Since temperature can affect FDP, it can vary season to season. Warmer temperatures generally shorten FDP while cooler temperatures tend to lengthen it.  

When peach fruit ripens, the ground color (or background color) changes from green to yellow. Since ground color is not influenced by fruit position or sunlight exposure it can be used to decide when to harvest. The red coloring on peaches or its “blush” color, however, is affected by fruit position and sunlight. The more sun exposure the fruit receives the more intense the blush color. Slight softening at the fruit tip can also be used to figure out ripeness and when to harvest. Peaches should come off the tree easily when given a gentle twist. Since peaches will not ripen further once they are picked, it’s important to wait until they are fully ripe before harvesting.

References

Training and Pruning Florida Peaches, Nectarines and Plums. Ali Sarkhosh and James Ferguson.  IFAS Publication #HS1111

PRUNUS PERSICA: PEACH Edward F. Gilman and Dennis G. Watson https://edis.ifas.ufl.edu/publication/ST513

Thinning Florida Peaches for Larger Fruit. Yuru Chang, Ali Sarkhosh, Jeffrey Brecht, and Peter Andersen.  IFAS Publication #HS1324

IFAS Gardening Solutions.  Deciduous Fruit Trees

Florida Peach and Nectarine Varieties. Ali Sarkhosh, Mercy Olmstead, Jose Chaparro, Pete Andersen, and Jeff Williamson.  IFAS Publication #Cir1159

IFAS Gardening Solutions.  Peaches

Stone Fruit Production: https://hos.ifas.ufl.edu/stonefruit/production/nutrition/ 

Authored by Dr. Cynthia Nazario-Leary and MGV Colin Burrows.
Photos by IFAS Photo Database

selecting, storing, preparing, and cooking with peaches

Peaches are one of my favorite fruits, I love to eat and cook them. You will see some of my favorite peach combinations throughout this article. Peaches can be eaten on their own or added to a variety of dishes. They are referred to as stone fruits because they have a large and hard seed and are from the rose family.  Peaches have a sweet, delectable aroma with delicious soft, juicy flesh that is full of nutrients and may offer a variety of health benefits such as improved digestion, smoother skin, and allergy relief. Yes, those fuzzy delectable peaches are a rich source of Vitamins A, C, E, and fiber. They also contain high amounts of potassium, magnesium, zinc, and phosphorus.  Peaches are rich in phytochemicals called phenols that act as antioxidants. They provide 6% of the daily vitamin A needs and 15% of daily vitamin C needs. One medium peach also contains 2% or more daily value of vitamins E and K, niacin, folate, iron, choline, potassium, magnesium, phosphorus, manganese, zinc, and copper.

selecting




When selecting peaches, you want a peach that is slightly firm with a sweet peachy smell. Do not squeeze peaches to see if they are firm because they bruise easily. Avoid if there are bruises or soft spots, worm holes, damaged, wrinkled, or dented skin on the peaches. The skin should have a creamy gold-or-yellow under color. The red or blush of a peach is an indication of variety and not ripeness. The more fragrant the peach the more flavorful it tends to be. Avoid any peaches that have a green color on their skin which indicates it was picked too early, is unripe and will not have much flavor. 

storing

Store ripe peaches at room temperature on the counter for 1 to 2 days away from sunlight to soften. Ripe peaches can also be stored in the refrigerator for up to 7 days. Store them loose in the low-humidity drawer of your refrigerator. Set the lever to open, to allow more air coming in or you can crack the drawer slightly open to let air in. Be sure to keep peaches away from raw meat and meat juices to prevent cross-contamination. Unripe peaches that are firm can be placed in a paper bag on the counter to speed up ripening. If you have a basket full of peaches do not store them in the basket, remove them from the basket and store in a single layer. For long-term storage you can freeze, can or dry peaches. 

preparing





Before preparing and after handling any fresh produce always wash your hands. All you need to do to peaches before eating is wash them under cool water. Do not use soap or detergent to clean, just cool water. You may choose to peel or slice peaches to eat and will need to brush them with fresh lemon juice to prevent them from browning. If you have a peach that has a bruised or damaged section, you can reduce food waste by cutting out that section of the peach and squeezing lemon juice on top before storing. You can peel peaches with a knife or to make peeling easier dip your peach in boiling water for 30 seconds, then in cold water. The peel should slide or rub off easily. To remove the pit from the peach, slice the peach in half around the pit, twist each peach half in opposite direction until it comes apart and remove the pit. If you are not eating the half immediately dip them into a mixture of 1 cup water with 1 tablespoon lemon juice to prevent browning. To can, freeze or dry peaches refer to guidelines on the National Center for Hone Food Preservation website at https://nchfp.uga.edu/


cooking

Enjoying a delicious juicy fresh peach, peach pie, fried pie, cobbler or peach ice cream usually comes to mind when someone mentions eating peaches.  These may be the most popular ways to eat peaches but there are several more.  Enjoy peaches in a smoothie, slices in a salad or yogurt bowl, chopped as a topping for desserts or grilled meats, with cottage cheese, in breads, baked goods and various desserts as well as on a sandwich.  How about a peanut butter sandwich with slices of peaches and bananas on whole-wheat toasted bread or a whole-wheat pita.  Use frozen peaches for tea and lemonade for extra flavor.  Several cooking methods can be used in cooking peaches; such as baking, roasting, grilling, sauteing, poaching and stewing.

Roast peaches in oven at 350˚ for 15-20 minutes. For a delicious dessert you can top it with cinnamon and ice or your favorite topping. I love basil ice cream with mine.

Bake: Heat oven to 375°F. Cut peaches in half, remove pits, and place the peaches skin-side down in a baking dish. You can bake without a filling (like I do most of the time) or fill each peach with a teaspoon of butter, brown sugar and add cinnamon to taste. Bake for 35 minutes or until the outside of the peaches have softened and the tops are brown. Serve with your choice of toppings. My favorite topping is a lemon ricotta pistachio mixture drizzled with honey and freshly chopped basil. I also love baked peaches filled with a scoop of Greek yogurt, lightly sprinkled with granola and toasted nuts with a drizzle of honey.

Sauté:  Cut 4 peaches in half and remove the pits. Toss the peaches in a large bowl with ½ cup lemon juice and ¼ cup sugar. Melt 1-2 tablespoons butter in a skillet over medium heat. Cook peaches until the juice thickens, stirring gently for about 3 minutes. For a quick dessert spoon the hot sauté peaches in bowls and place 2 to 3 slices of brie cheese on top of each bowl of hot peaches then lightly drizzle with balsamic vinegar glaze.

Poaching and stewing peaches is a gentle and delicate cooking technique that results in tender, juicy, and flavorful fruit. This method preserves the natural sweetness of peaches while infusing them with additional flavors. This is where you can add any herb or spice while cooking, or shortly after, or before serving.

Grilling and making compotes are common ways to cook fruit. You can add spice or herbs to peaches during the cooking process to intensify the flavor and change the texture. To make peach compote combine peaches, sugar, lemon juice and water. Bring to boil and simmer for 7 to 10 minutes until peaches soften and start to breakdown. Delicious served on pancakes, yogurt, and ice cream. (See recipe below for grilling instructions.)·  

pairing

Peaches with ham and basil

Peaches, cheese and crackers

Peaches with fruit, cheese and basil

Peaches pair well with Allspice, raspberries, most herbs, pork, chicken, prosciutto, tenderloin, salmon, bacon, turkey and chicken, Nuts (plain or toasted), coconut (plain or toasted), lime zest and all citrus, ice cream and brown sugar. Peaches also pair well with caramel, and you can add a splash of bourbon, rum amoretto, or Prosecco for added a layer of flavor. Cottage cheese is not the only cheese that compliments peaches. They pair well with most chesses, but the best choices are creamy goat cheese, mascarpone, bleu cheese, Mozzarella, and feta. 

 

If you are looking for something to add just a little flavor to your peaches keep in mind these simple items, you have in your pantry that will enhance the flavor of peaches. Sugar will boost sweetness, vanilla adds an aromatic and slightly floral quality, while lemon brings out a tangy note and a dash of clove and cinnamon adds that kiss of spice. Basil, tarragon, thyme, and rosemary add an earthy note to peaches while ginger, cinnamon, cardamom, clove, and nutmeg add warmth with a touch of spice.

nutritive value

One medium peach contains:  67.6 calories, 1.34 grams protein, 0.4 grams fat, 14.8 grams carbohydrates, 2.2 grams fiber, 12.3 grams sugar, 5.88 milligrams calcium, 0.5 grams iron, 179 milligrams potassium, and 19.1 milligrams sodium. If you are diabetic keep in mind peaches are higher in carbohydrates, so watch how much you are eating to stay on top of your carbohydrate intake.

martha's grilled peaches and cream

Ingredients

4 fresh peaches, with skin, cut in half, pit removed.

1 ½ tablespoon extra-virgin olive oil

1 tablespoon balsamic vinegar

1 teaspoon agave nectar

2 tablespoon fresh chopped basil

 

Ingredients For Cream

2 peaches thinly sliced.

2 bananas, peeled and cut into 1-inch chunks.

3 tablespoons chopped fresh basil or 1 tablespoon dried.

2 tablespoons pure maple syrup.

Fresh basil leaves for garnish, whole and chopped.

2 tablespoons toasted pecans, chopped.


Instructions for cream:  Freeze the sliced peaches and chunks of bananas for 2 to 4 hours. In a food processor combine frozen peaches and bananas with chopped basil. Cover and process until smooth and creamy. Be sure to scrape down the sides of bowl a few times. Taste mixture if you need more sweetness add 1 tablespoon maple syrup. Add the cream to the grilled peaches. Place whole basil leaves around plate as garnish. Sprinkle on cream chopped toasted pecans, chopped basil and drizzle with the remaining 1 tablespoon maple syrup. (If I have extra sweet peaches, I do not use maple syrup but garnish with chopped basil and a little diced fresh peach)

 

Instructions for peaches: Place peaches in a 9×9-inch baking dish, cavity facing up. Whisk together olive oil, vinegar, agave nectar and chopped basil. Drizzle over peaches and marinate for 30 minutes. Heat a grill. Place peaches cavity facing up, on hot grill and grill for 3 minutes or until lightly charred. Turnover the peach halves and brush with remaining vinaigrette in dish. Grill for 3 minutes or until lightly charred. Remove from the grill and place on serving dish and add cream. Garnish with fresh basil leaves and pecans. (If you need more sweetness on the cream drizzle with 1 tablespoon maple syrup.)  Serve immediately. Makes 4 servings (2 halves each).



Selecting, Preparing, Storing and Cooking with Peaches submitted by:  Martha Maddox, CEA IV, Family and Consumer Sciences Agent, UF/IFAS Extension Alachua County.

Pictures:  Pictures taken by:  Martha B. Maddox, CEA IV, FCS, UF/IFAS Extension Alachua County and Canva.

Resources Used:  UF/IFAS EDIS #FCS8932 Cooking with Fresh Herbs, Emily Minton, and Martha Maddox https://edis.ifas.ufl.edu/publication/FY1209