|It is the middle of summer and the garden is a blaze of colour. In the
summer rainfall areas, gardeners should be making plans for the winter
SUMMER FLOWERING ANNUALS
Remove faded flowers and water regularly in dry weather. In summer
rainfall areas, put out snail bait in the late afternoon after rain or
HARDY SUMMER FLOWERING ANNUALS
If these are sown now the seedlings will stand through the winter
and start flowering early next summer:
Alcea rosea (Hollyhock)
Antirrhinum majus (Snapdragon)
Daucus Carota var. carota (Queen Anne's Lace)
Delphinium grandiflorum (butterfly delphinium)
Digitalis purpurea (foxglove)
Iberis umbellata (candytuft)
Malcolmia maritima (Virginian stocks)
Petunia x hybrida
Tropaeolum majus (nasturtium)
Verbena x hybrida
WINTER FLOWERING ANNUALS
Prick out or transplant Primula malacoides (fairy primula) and
ornamental kale seedlings.
Sweet peas: Prepare trenches for sweet peas. Dig a trench
about 40cm wide and 60cm deep, keeping the bottom soil on one side. Break
up the soil at the base of the trench and return the bottom soil well
mixed with compost. Do this with the topsoil as well. Remember to compost
well. This should be done a month before you sow the seeds. A week before
sowing, lightly sprinkle with lime and rake it into the top layer of soil.
Now you should prepare your support systems.
In summer rainfall areas, sow the following:
Papaver nudicaule (Iceland poppy)
Viola x wittrockiana (pansy)
Viola cornuta (viola)
Acanthus: Cut foliage and old flowering stems down to ground
level. Mulch with compost and scatter 60g of 2:3:2 round the root area and
Chrysanthemums: Scatter a tablespoon of 2:3:2 round each clump once a
month, or feed with Multifeed P, Nitrosol or lush every two weeks at the
rate recommended on the container. Tie the plants to their stakes.
Delphiniums (crowns and seedlings planted in autumn): Water copiously,
protect from slugs and snails, and tie new flower stems to stakes where
Pelargoniums (geraniums): Feed with 2:3:2 once a month. Give plants
growing in the open about a tablespoon scattered over the root area and
those in pots a teaspoon scattered over the soil. Water in immediately.
Agapanthus: Water abundantly in dry weather.
Amaryllis belladonna: If the plant shave become overcrowded, lift, divide
and replant the bulbs, with the neck of the bulb just below the surface of
the soil. In the winter rainfall areas, wait until April and lift after
Cannas: Water during dry weather, and scatter 60g of 2:3:2 round each
clump once a month. Water in after application. Remove old flower stems by
gripping them firmly at the base and giving them a sharp twist.
Dahlias: Water during dry weather, and feed every two weeks with a soluble
fertiliser. Disbud by removing all but one bud on each stem. Tie the
plants to stakes and watch for red spider.
Gladioli: Water regularly and spray one a week against thrips and
gladiolus fly, and spray for rust if necessary. Lift those, which are
Irises: Finish lifting and dividing the clumps this month.
Liliums: As the blooms fade, remove the seed heads (unless the seed is to
be saved), cutting them off with the minimum amount of stem. Give each
clump a tablespoon of 3:1:5. Dissolve this in 5L of water; apply to the
root area and water in. Keep the ground well mulched with compost.
White evergreen arum lilies: If the plants are overcrowded and the flowers
deteriorating they can be lifted and divided this month. Cut some of the
older leaves off, then replant the tuber-like rhizomes in the soil
enriched with compost and dressing of superphosphate.
Half-ripe cuttings of all shrubs can be taken this month.
Azaleas: Water regularly and hose down the foliage. Take half-ripe
cuttings of the new growth that was sent out in spring.
Camellias: Mulch the ground under the bushes with acid compost and/or bark
(obtainable from your nursery) and, from now on, water once a week if the
weather is dry. This is important for bud development. It is the ideal
time to take half-ripe cuttings of the new wood that was sent out in
Cotton lavender: Prune lightly after the shrub has flowered.
Hydrangeas: Remove faded flowers unless they are required for flower
arrangements. Give each bush 30g of 2:3:2 and mulch with compost or peat.
Water two or three times a week, hosing down the foliage. Watch for red
Roses: Continue preventive spraying against black spot, rusts and mildew.
Give each bush a tablespoon of 2:3:2 scattered over the root area. Renew
the mulch of compost on the beds, and water well once a week if the
weather is dry.
Feed with 2:3:2 once during the month at the rate of 60g per
square metre. Scatter this over the grass when it is dry, and water in
immediately after application. Mow regularly, and water during dry
weather, doing this in the morning.
Citrus: Water every three weeks during dry weather.
Grapes: Spray for mildew if necessary. Grapes never ripen once they have
been picked, so always sample a berry or two before cutting a bunch.
Guavas: Water thoroughly every two weeks during dry weather.
Mangoes: Apply 2kg of 3:1:5, scattering this over the root area, starting
at least 10cm away from the trunks of the trees and going out to just
beyond the drip line of the branches.
Mulberries: Water once during the month if the weather is exceptionally
Pawpaws: Water every two weeks during dry weather.
Strawberries: Water once a week during dry weather.
These vegetables can be grown in the various regions this month:
Mpumalanga and warm frost free areas
Free State and Northern Cape
Kwa Zulu Natal Midlands
Eastern Cape and Karoo
Western Cape - Winter rainfall areas