You thought the indoor sowing season inside was over? Not at all! There are still a lot of plants it’s worth sowing indoors. These are typically the fast-growing plants that should not be sown too early, otherwise they start to stretch indoors, yet they still benefit from a bit of heat early in their development, something you simply can’t guarantee outdoors this early in the year. Here are a few examples:
- African Marigold (Tagetes erecta)
- Ageratum (Ageratum houstonianum)
- Annual Baby’s Breath (Gypsophila elegans)
- Annual Flax (Linum grandiflorum, L. usitatissimum and others)
- Annual Gaillardia (Gaillardia pulchella)
- Baby Blue Eyes (Nemophila spp.)
- Balsamine (Impatiens balsamina)
- Basil (Ocimum basilicum)
- Batchelor’s Button (Centaurea cyanus and others)
- Brussel Sprouts (Brassica oleracea gemmifera)
- Castor Bean Plant (Ricinus communis)
- Celosia (Celosia argentea and others)
- Chives (Allium schoenoprasum)
- Cleome or Spider Flower (Cleome hasslerana)
- Cockscomb (Celosia argentea cristata)
- Cosmos (Cosmos bipinnatus and C. sulphureus)
- Felicia (Felicia bergeriana, F. heterophylla)
- Fennel (Foeniculum vulgare)
- Flowering Cabbage (Brassica olearcea acephala)
- French Marigold (Tagetes patula, T. patula x erecta)
- Garlic Chives (Allium tuberosum)
- Joseph’s Coat Amaranthus (Amaranthus tricolor)
- Kingfisher Daisy (Felicia bergeriana, F. heterophylla)
- Kiss-Me-Over-The-Garden-Gate (Persicaria orientalis, syn. Polygonum orientale)
- Kohlrabi (Brassica olearcea gongylode)
- Lettuce (Lactuca sativus)
- Love-Lies-Bleeding (Amaranthus caudatus)
- Melon (Cucumis melo)
- Morning Glory (Ipomoea spp.)
- Mullein (Verbascum bombyciferum, V. olympicum, etc.)
- Nolana (Nolana paradoxa, N. humifusa)
- Perennial Flax (Linum perenne, L. flavum, etc.)
- Phacelia (Phacelia campanularia, P. tanacetifolia and others)
- Policeman’s Helmet (Impatiens glandulifera)
- Pumpkin (Cucurbita pepo)
- Rodgersia (Rodgersia aesculifolia and others)
- Spinach (Spinacia oleracea)
- Squash (Cucurbita pepo)
- Statice (Limonium sinuatum and others)
- Summer Savory (Satureja hortensis)
- Sunflower (Helianthus annuus)
- Swan River Daisy (Brachyscome iberidifolia)
- Sweet Alyssum (Lobularia maritima)
- Sweet Pea (Lathyrus odoratus)
- Watermelon (Citruillus lanatus)
- Zinnia (Zinnia spp.)
- Zucchini (Cucurbita pepo)
