April in the Garden

Welcome to the second month of autumn, gardeners! The air may be cooler, but the landscape is glowing with warm, rich colours. While many plants are slowing down for winter, cool-season flowers are just waking up, ready to bring charm and cheer. April is the perfect time to tackle pre-winter maintenance, refresh your veggie patch, and set the stage for a season of soups, stews, and vibrant blooms.

Flowers to plant

April is bulb season, and South Africa offers a treasure trove of options. Indigenous beauties like watsonia, freesia, ixia, chincherinchee, and sparaxis thrive when planted now. For a touch of classic elegance, go for daffodils, irises, tulips, and hyacinths. If you’re after instant colour, seedlings of primulas, poppies, pansies, and gazanias are perfect. Perennials such as lupins, Shasta daisies, and aquilegias will also reward you with long-lasting displays. And don’t forget roses – planting new ones now allows them to settle during winter and burst into life in spring. Keep spraying against fungal diseases like mildew and black spot to protect their foliage.

Seeds to sow

Cool-season sowing is in full swing. Try osteospermum, mesembryanthemums, or scatter packs of indigenous mixes for a natural meadow effect. Virginian stocks, calendula, and Felicia are also excellent choices.
In the veggie patch, sow peas, parsnips, carrots, onions (Texas Grano short-day variety), beetroot ‘Bulls Blood’, and broccoli. Herbs like parsley, coriander, and chives can be started indoors on sunny windowsills—just remember to move containers away from cold glass at night to prevent damage.

Pest patrol

Even in autumn, pests don’t take a break. Aphids may linger, so inspect flowers closely and treat with Plant Protector if needed. Snails and slugs love tender leaves—products like Snailban or Snailflo will help keep them at bay.
Scale insects, those sap-suckers that weaken plants, can be controlled with Malasol or Oleum sprays during the cooler months. Leaf miners are particularly active now, twisting and curling new leaves, so apply Eco Insect Control SC regularly. And don’t overlook ants – they’re notorious for spreading disease. Sprinkle Ant Dust around their trails to keep them in check.

Feeding for strength

Give your garden the nutrition it needs to thrive through winter:

• Feed hellebores for a dramatic winter show.
• Cyclamen from last year should be fed every two weeks once buds appear.
• Aloes and flowering succulents benefit from All Purpose fertiliser now.
• Lawns will appreciate a boost with Bio Ganic Lawns.
• Sweet peas love Bio Ocean – train them onto a trellis for height and fragrance.
• Citrus trees need a general fertiliser, like All Purpose, plus a handful of Epsom salts per tree.

Maintenance musts

Prepare for frost in vulnerable areas—stock up on protective covers from your local garden centre. Mulch generously with groundcovers or organic material to insulate soil and conserve moisture.
Refresh containers by removing the top third of soil and replacing it with fresh potting mix. Repot any plants that have outgrown their homes, and help them adapt with a sprinkle of Bio Rock Root Builder after transplanting.

April is a month of preparation and promise. By planting, sowing, feeding, and protecting now, you’re setting the stage for a garden that will thrive through winter and explode with colour in spring. And if you’re ever unsure about fertilisers or sprays, your local garden centre advisors are ready to guide you.