What to do in your garden in September
Plant & Sow
Annuals
Start to sow summer-flowering annuals:
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Tropaeolum majus (Nasturtium)
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Tanacetum parthenium (Chrysanthemum parthenium) (Feverfew)
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Helianthus annuus (Sunflower)
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Centaurea cyanus (Cornflower)
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Amaranthus tricolor (Joseph’s coat)
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Cosmos bipinnatus (Cosmos)
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Eschscholzia californica (Californian poppy)
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Alcea rosea (Common hollyhock)
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Zinnia elegans (Zinnia,)
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Scabiosa atropurpurea (Sweet scabious, pincushion flower)
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Salvia splendens (Sage, scarlet salvia)
Vegetables
Sow vegetables like:
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Petroselinum species (Parsley)
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Phaseolus coccineus (Runner bean)
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Raphanus sativus (Radishes)
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Cucurbita maxima (Pumpkins)
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Daucus carota (Carrots)
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Cucumis melo; Cucumis citrullu (Melons)
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Cucumis sativus (Cucumbers)
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Capsicum annuum var. longum, C. var. annuum (Sweet peppers)
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Beta vulgaris var. cicla (Chard, Swiss chard)
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Asparagus officinalis (Asparagus)
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Solanum melongena (Brinjal, eggplant, aubergine)
Bulbs
Plant summer-flowering bulbs:
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Zantedeschia aethiopica (Arum lily)
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Canna Species (Indian shot)
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Cleome spinosa (Spider flower)
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Liatris pycnostachya (Gay feather)
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Tulbaghia violacea (Wild garlic)
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Zephyranthes candida (Fairy lily, white rain lily)
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Tigridia pavonia x hybrids (Mexican shell flower, tiger flower)
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Sprekelia formosissima (Maltese cross, Aztec lily, Jacobean lily)
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Polianthes tuberosa x hybrids (Tuberose)
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Ornithogalum candicans (Berg lily, white berg lily)
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Nerine bowdenii (Giant nerine, large pink nerine)
Gardening Maintenance
- Do not neglect your container plants; prune them lightly and feed and water them regularly.
- Cut out the dead branches from garden trees.
- Feed and deadhead annuals.
- Feed shrubs with a fertilizer high in potassium.
- Water and mow the lawn.
- Water, feed and cut the lawn regularly to cultivate a thick mat.
- Apply a light cover of lawn dressing if required.
- Fertilize the garden once a month with Wonder 3:1:5 (26) SR or Wonder 5:1:5 (22) All-Purpose at a rate of 30g/m2.
- Ensure your container plants are damp before feeding, otherwise the roots may suffer from fertilizer burn.
- Remove suckers from bromeliads and transplant them.
- Feed bananas; and water citrus, litchis, mangoes and papaws thoroughly.