May Gardening Update
Autumn in the Garden
May marks the golden end of Autumn in Christchurch — a beautiful, busy time as the landscape transforms and cooler days signal the arrival of Winter. There’s a special energy in the garden now: a race to finish Autumn tasks and lay the groundwork for a thriving Spring.
Tidy Up and Prepare
Sweep up those brilliant Autumn leaves and start a compost pile rich in future garden goodness. Keep paths safe and slip-free by clearing away moss and debris, and give lawns a little love — patch bare spots, treat any moss, and continue mowing while the grass is still growing. A neat garden now will reward you through Winter and beyond.
Planting for the Future
Spring-flowering bulbs and lilies should be tucked into the soil without delay. Keep Winter annuals like pansies, polyanthus, and primulas well-fed and weed-free to ensure cheerful colour during the colder months.
In the Veggie Patch
Clear out spent Summer crops, but compost only the healthy remains — anything diseased should go straight to the bin. Empty beds can be sown with green manure crops to rejuvenate the soil for next season.
Fruit & Vegetable Garden
- Sow broad beans now for a robust Winter crop.
- Keep leeks weed-free and fed — they hate competition!
- Sow onion seeds for transplanting later.
- Prepare beds for planting garlic.
- Remove and discard mummified fruit to prevent future diseases.
- Prune away old berry canes to make way for fresh growth.
- At the end of the month plant strawberries for sweet rewards!
Flower Garden
- Cut chrysanthemums and dahlias back by two-thirds as they finish their Autumn show.
- Boost Winter annuals like pansies and primulas with a side feed.
- Spray roses before they drop their leaves to prevent black spot and rust next season.
- Trim old hellebore leaves to showcase their Winter blooms.
- Keep gardens weed-free and lift and divide tired Summer perennials.
Lawns
- Mow weekly while growth continues — and don’t leave the clippings behind.
- Patch and topdress any worn areas with instant turf.
- Treat mossy patches and aerate compacted soil to keep lawns healthy.
- Look out for signs of grass grub and treat before the first hard frosts.
Remember: questions can be posted on HortTalk our online facebook group