May

May

May is a time of very warm days and cooler nights in the subtropics. But following a damp April, there should be good subsoil moisture for edible gardening.  

So while Southerners are stoking fires, we can still do lots of productive gardening. It may be more productive to plant seedlings rather than seeds as we start seeing overnight temps dropping below 18C. If you do use seeds, seed trays can be kept in a warm spot, and even brought inside overnight to maintain a consistent temperature to boost germination.

Consider the DTM (days to maturity) for any crops you plant in May. Eggplant can take up to 100 days to reach maturity, so it could be August before you begin picking. If you use a 4-bed rotation, you may want to begin rotating beds through August, because  Spring is such a short season for us, leading into Summer. 

Use the comments to ask a question or ask for advice or seek some help. There'll always be someone willing to help you down the track to success!

Feeding

Plants and the soil will benefit from regular feeds. Use seaweed, compost tea, weed tea or worm tea, sprayed over any foliage or the soil early in the morning. It will get your soil life pumping for autumn growth. Use a watering can or hose-on applicator.

Be aware of plant requirements - leafy greens need more nitrogen than root or legume crops.

Tomatoes can be boosted with a Powerfeed of Seasol that has a higher potash content - https://bit.ly/40sDwKp.

A healthy soil will ensure a healthy, nutrient dense food - https://bit.ly/3XOw7Ud 

Mulch

Windy weather and weeds can quickly suck up moisture from your edible garden.

Top up mulch to a depth of about 7cm. Deeper layers can prevent precipitation getting to the root zones of your plants. Use mulch that will break down and enrich your soil -  sugar cane or straw are ideal. Pull back from newly planted seedlings.

Mulch can help minimise weeding, or at least make it easier to remove them.

Southern gardeners are removing mulch to warm soils up - not necessary here during our mild winters, and sometimes hot days.

Watering

It's likley to remain warm, so crops will need to be watered carefully.

Water early in the morning rather than in the evening.
Water deeply, rather than a trickle of water daily. Strong plants will follow. Check moisture levels before adding more - check with your finger.

Some plants get all droopy when they’re dry. It’s best to water them just before this point. You may notice that your plants change colour when they need a drink - a subtle change, but still a good indicator of needing a drink. It may be a silvery sheen, or a variation in leaf colour. Good observation in you garden will help in managing water stress.

Succession planting

Succession planting is about having regular small quantities of produce pickable, rather than a glut of produce that you either pickle, donate to Food Relief or take to the monthly Produce Swap.

This spreadsheet might be useful if you're a bit geeky. Otherwise, the aim is to plant smaller quantities more regularly. https://bit.ly/3xGlfxd 

Check out the guide below to work out when to plant different seeds for  succession planting.
https://bit.ly/3IHRthQ 


Pollinators

Start your flowering plants now- zinnia, cosmos, marigold, ammi majus (Queen Anne's lace), cleome and  nasturtiums. They'll attract pollinators and beneficial insects. Don't forget herbs as dual purpose plants. Perennial basil flowers almost nonstop. And it provides abundant leaf for cooking. Consider placement depending on whether they’re a companion or decoy plant.  Decoys need to be placed away from your crops.

Don't underestimate IPM (Integrated Pest Management) - and how it can help control pests without using harmful chemicals.

Edible companions

Many companion plants are edible - so they're doing a number of jobs in your edible garden. 

Calendula, nasturtium,  alyssum, marigold, and viola are some of the edible flowers that can be used to encourage beneficial insects.

Legumes

Peas

Snow peas

Sugar snap peas

Beans Bush

Winged beans



Leafy greens

Lettuce

Spinach

Kale

Brassicas 

Asian greens

Coriander

Silverbeet

Rocket

Mustard greens

Fruiting

Tomatoes

Capsicum

Chilli

Okra

Zucchini

Root

Leeks

Onions

Shallots

Carrots

Beetroot

Garlic

Radish

Turnip



The list above is for Autumn/Wintere planting in the subtropics.  

Root vegetables (especially carrots) should be sown directly into the ground. Here's a pretty good guide to help you plan the sowing of seeds in punnets or trays, so they're ready for planting out when you're ready - https://www.boondieseeds.com.au/blogs/news/plantingguide Read seed packets to check which seed should be soaked prior to planting.

Keep in mind that heat, moisture and available nutrient will impact these germination times.