ANNUALS
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:
Alyssum
Dahlia (bedding)
Dwarf
marigold
Eschscholtzia californica (Californian poppy)
Iberis
umbellata (candytuft)
Portulaca
Tagetes
Nasturtium
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.
PERENNIALS
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)
Alyssum
Aquilegia caerulea (columbine)
Argyranthemum
(chrysanthemum) hybrids
Argyranthemum maximum (chrysanthemum)
(Shasta daisy)
Aster novi-belgii (Michaelmas daisy)
Bellis
perennis (English daisy)
Bergenia cordifolia
Begonia
Centaurea
candidissima
Centaurea macrocephala
Cerastium tomentosum (snow
in summer)
Delphinium
Digitalis (foxglove)
Gaillardia x
grandiflora
Gazania
Gerbera jamesonii (Barberton
daisy)
Gypsophila paniculata
Helianthemum
Heliotropium
Hypoestes
sanguinolenta
Liatris
Limonium
Lobelia cardinalis
Lupinus
(lupins)
Nierembergia
Papaver orientale (Oriental
poppy)
Penstemon
Phlox decussata
Primula x polyantha
(primula acaulis)
Primula veris (primrose)
Scabiosa
caucasia
Viola odorata (sweet violet)
BULBS
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 flowering.
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.
LAWNS
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 evening.
SHRUBS
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
fertiliser.
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.
ROSES
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 patience!
FRUIT
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 water well.
Cape
gooseberry
seeds can be sown now in winter rainfall areas.
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 branches.
Rasberries
should be mulched with well rotted manure or compost. If you use
compost, feed with 2:3:2. Never let the plants dry out.
VEGETABLES
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 area.
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.