Feed annuals with a liquid fertiliser every two to three weeks. Try
Nitrosol, Multifeed P or Phostrogen. Dead-head regularly. Red spider could
make an appearance now, so be on the lookout for that. Look on the
underside of leaves. Snails and slugs will be on the warpath too. Scatter
snailbait in the late afternoon after watering.
These quick-growing summer-flowering annuals can be sown now:
Eschscholtzia californica (Californian poppy)
Iberis umbellata (candytuft)
Although it seems crazy to think about winter gardening
in the middle of summer, it's time to start sowing some winter-flowering
seed. Ornamental kale and primula malacoides for example.
Dead-head regularly. Mulch with compost around each plant and don't be
mean! A 10cm layer will do wonders for your plants, keeping the roots cool
and moist. You wont have to water as often. Never allow the roots to dry
out completely though. This is particularly important in winter-rainfall
areas where rainfalls are few and far between. Divide primroses when
they've finished flowering.
Seed of the following perennials can be sown now in seed trays:
Achillea millefolium (yarrow)
Felicia amelloides (blue daisy)
Aquilegia caerulea (columbine)
Argyranthemum (chrysanthemum) hybrids
Argyranthemum maximum (chrysanthemum) (Shasta daisy)
Aster novi-belgii (Michaelmas daisy)
Bellis perennis (English daisy)
Cerastium tomentosum (snow in summer)
Gaillardia x grandiflora
Gerbera jamesonii (Barberton daisy)
Papaver orientale (Oriental poppy)
Primula x polyantha (primula acaulis)
Primula veris (primrose)
Viola odorata (sweet violet)
As the foliage of winter-flowering bulbs dies down, some
can be lifted and stored.
Summer flowering bulbs should be watered at least once a
week. Never let them dry out.
If you have Amaryllis planted in the garden, watch out
for the amaryllis caterpillar (lily borer). Use Karbaspray or similar, but
only spray the affected plants. Amaryllis make perfect pot plants too.
Cannas should be fed once a month. Scatter one tablespoon of 2:3:2 around
each clump. Water deeply once a week.
Feed dahlias once a month with a liquid fertiliser such
as Multifeed P, Nitrosol or Phostrogen. Hose down the foliage to
discourage red spider. Stake the plants as they grow.
Irises can be lifted and divided as they finish
Keep the soil around liliums well-mulched to keep the
roots cool and feed once a month with a liquid fertiliser. Tie the growing
stems to firm stakes.
Feed your lawn every 4 to 6 weeks with 3:2:1(28)(SR), a slow-release
fertiliser that wont burn the lawn. Mow at least once a week. Twice is
better! Change the direction in which you mow often to prevent ridges and
uneven growth. Water in the early morning so that it can dry out by the
Softwood cuttings can still be taken. Water during dry
weather. Always water deeply. Make a dam around the plant and water close
to the base. Let the water trickle in slowly. Lay a 10cm mulch layer of
compost or bark chips around each bush.
Fuchsias will need watering every two or three days now.
Pinch back to encourage more flowers. Feed once a month with a liquid
Hydrangeas need regular watering. In very hot weather,
hose down the foliage. Feed once a month with a liquid fertiliser or 1
tablespoon of 2:3:2 per bush. Water in well.
Dead-head regularly. Cut back to the first leaf with 5
leaflets and a dormant bud pointing in the direction that you want the new
shoot to grow. Give each plant a large handful of 8:1:5 granular
fertiliser or an organic equivalent. Watch out for all sorts of pests.
Remove beetles by hand rather than spraying, if you've go the time and
If you're lucky enough to be able to grow bananas, feed
each plant with 30g of 3:1:5, scattered around the root area. Mulch and
Cape gooseberry seeds can be sown now in winter rainfall
Scale on citrus trees can be sprayed with a light mineral
oil, or wiped with a cloth dipped in methylated spirits. If you notice a
green caterpillar with bright orange "horns" munching the
leaves, leave it alone. It's called the "orange dog" and turns
into a beautiful yellow and black butterfly. Of course if there are too
many, you'll have to remove them or you wont have much of a tree left!
Once all the fruit of Mulberries has been picked, feed
each tree with 2kg of 3:1:5 scattered around the root area. Start 10cm
from the stem and scatter out a little beyond the dripline of the
Rasberries should be mulched with well rotted manure or
compost. If you use compost, feed with 2:3:2. Never let the plants dry
Water regularly and feed once a month with a liquid
fertiliser. Plant new batches once a month for a continuous supply. Many
vegetables can be sown now throughout the country. Ask your nurseryman for
advice, or read the seed packets next time you visit your nursery.
Tie tomatoes to stakes using twist-ties or rafia. Don't
use fishing line - it'll damage the stems especially if you're in a windy
Pick beans twice a week to encourage the plant to keep
bearing. The less you pick, the less it will bear. Don't pick when the
plants are wet, though. The leaves are more likely to be attacked by fungi
if they're handled when wet.
In sub-tropical areas, plant sweetcorn and make a last
planting of cucumbers.