What to sow and harvest in April?
Sow indoors
- Annual mallow Lavatera trimestris: sow 1 cm deep, germinates from 12 °C (best 20 °C), comes up after 10–20 days
- Basil Ocimum basilicum: don’t cover: light germinator, germinates from 15 °C (best 25 °C), comes up after 7–14 days
- Broccoli Brassica oleracea var. italica: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 5–10 days
- Brussels sprouts Brassica oleracea var. gemmifera: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 5–10 days
- Cauliflower Brassica oleracea var. botrytis: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 5–10 days
- Celery Apium graveolens var. dulce: don’t cover: light germinator, germinates from 15 °C (best 22 °C), comes up after 14–21 days
- Chives Allium schoenoprasum: sow 1 cm deep, germinates from 10 °C (best 20 °C), comes up after 10–14 days
- Cosmos Cosmos bipinnatus: sow 0.5 cm deep, germinates from 15 °C (best 22 °C), comes up after 7–14 days
- Courgette Cucurbita pepo: sow 2 cm deep, germinates from 15 °C (best 25 °C), comes up after 5–8 days
- Cucumber Cucumis sativus: sow 1.5 cm deep, germinates from 15 °C (best 25 °C), comes up after 4–8 days
- Endive Cichorium endivia: sow 0.5 cm deep, germinates from 10 °C (best 20 °C), comes up after 5–10 days
- French marigold Tagetes patula: sow 0.5 cm deep, germinates from 15 °C (best 22 °C), comes up after 5–10 days
- Gherkin Cucumis sativus: sow 1.5 cm deep, germinates from 15 °C (best 25 °C), comes up after 4–8 days
- Kale Brassica oleracea var. sabellica: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 5–10 days
- Kohlrabi Brassica oleracea var. gongylodes: sow 1 cm deep, germinates from 10 °C (best 20 °C), comes up after 5–10 days
- Lemon balm Melissa officinalis: don’t cover: light germinator, germinates from 15 °C (best 22 °C), comes up after 14–21 days
- Lovage Levisticum officinale: sow 0.5 cm deep, germinates from 10 °C (best 20 °C), comes up after 14–21 days
- Lupin Lupinus polyphyllus: sow 1.5 cm deep, germinates from 12 °C (best 20 °C), comes up after 14–21 days, soak the seed overnight
- Nasturtium Tropaeolum majus: sow 2 cm deep, germinates from 12 °C (best 20 °C), comes up after 10–14 days
- Oregano Origanum vulgare: don’t cover: light germinator, germinates from 15 °C (best 22 °C), comes up after 7–14 days
- Pak choi Brassica rapa subsp. chinensis: sow 1 cm deep, germinates from 10 °C (best 22 °C), comes up after 4–8 days
- Pumpkin Cucurbita maxima: sow 2.5 cm deep, germinates from 15 °C (best 25 °C), comes up after 5–10 days
- Purple coneflower Echinacea purpurea: sow 0.5 cm deep, germinates from 18 °C (best 22 °C), comes up after 10–21 days
- Purpletop vervain Verbena bonariensis: sow 0.5 cm deep, germinates from 18 °C (best 25 °C), comes up after 14–28 days
- Red cabbage Brassica oleracea var. capitata f. rubra: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 5–10 days
- Sage Salvia officinalis: sow 1 cm deep, germinates from 15 °C (best 22 °C), comes up after 10–21 days
- Savoy cabbage Brassica oleracea var. sabauda: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 5–10 days
- Sunflower Helianthus annuus: sow 3 cm deep, germinates from 10 °C (best 25 °C), comes up after 7–14 days
- Sweet pea Lathyrus odoratus: sow 2 cm deep, germinates from 10 °C (best 18 °C), comes up after 10–20 days, soak the seed overnight
- Sweetcorn Zea mays var. saccharata: sow 4 cm deep, germinates from 12 °C (best 25 °C), comes up after 7–12 days
- Thyme Thymus vulgaris: don’t cover: light germinator, germinates from 15 °C (best 22 °C), comes up after 14–21 days
- Tomato Solanum lycopersicum: sow 0.5 cm deep, germinates from 15 °C (best 25 °C), comes up after 6–10 days
- White cabbage Brassica oleracea var. capitata f. alba: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 5–10 days
- Zinnia Zinnia elegans: sow 0.5 cm deep, germinates from 18 °C (best 25 °C), comes up after 5–10 days
Sow outdoors
- Annual mallow Lavatera trimestris: sow 1 cm deep, germinates from 12 °C (best 20 °C), comes up after 10–20 days
- Beetroot Beta vulgaris var. conditiva: sow 2 cm deep, germinates from 8 °C (best 20 °C), comes up after 7–14 days
- Broad bean Vicia faba: sow 5 cm deep, germinates from 5 °C (best 15 °C), comes up after 10–14 days
- Brussels sprouts Brassica oleracea var. gemmifera: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 5–10 days
- Carrot Daucus carota subsp. sativus: sow 1 cm deep, germinates from 7 °C (best 20 °C), comes up after 10–21 days
- Chervil Anthriscus cerefolium: sow 0.5 cm deep, light germinator: cover very thinly, germinates from 8 °C (best 18 °C), comes up after 10–14 days
- Chives Allium schoenoprasum: sow 1 cm deep, germinates from 10 °C (best 20 °C), comes up after 10–14 days
- Common poppy Papaver rhoeas: don’t cover: light germinator, germinates from 10 °C (best 20 °C), comes up after 10–20 days
- Coriander Coriandrum sativum: sow 1.5 cm deep, germinates from 10 °C (best 20 °C), comes up after 7–14 days
- Cornflower Centaurea cyanus: sow 1 cm deep, germinates from 10 °C (best 20 °C), comes up after 7–14 days
- Dill Anethum graveolens: sow 0.5 cm deep, light germinator: cover very thinly, germinates from 10 °C (best 20 °C), comes up after 10–14 days
- Garden pea Pisum sativum: sow 4 cm deep, germinates from 5 °C (best 15 °C), comes up after 7–14 days
- Leek Allium porrum: sow 1 cm deep, germinates from 10 °C (best 20 °C), comes up after 10–18 days
- Lettuce Lactuca sativa var. capitata: sow 0.5 cm deep, light germinator: cover very thinly, germinates from 5 °C (best 18 °C), comes up after 4–10 days
- Loose-leaf lettuce Lactuca sativa var. crispa: sow 0.5 cm deep, light germinator: cover very thinly, germinates from 5 °C (best 18 °C), comes up after 4–10 days
- Mangetout Pisum sativum var. saccharatum: sow 4 cm deep, germinates from 5 °C (best 15 °C), comes up after 7–14 days
- Onion Allium cepa: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 10–18 days
- Oxeye daisy Leucanthemum vulgare: don’t cover: light germinator, germinates from 15 °C (best 20 °C), comes up after 10–20 days
- Parsley Petroselinum crispum: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 14–28 days, soak the seed overnight
- Parsnip Pastinaca sativa: sow 1.5 cm deep, germinates from 7 °C (best 18 °C), comes up after 14–28 days
- Pot marigold Calendula officinalis: sow 1 cm deep, germinates from 10 °C (best 20 °C), comes up after 7–14 days
- Radish Raphanus sativus: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 3–7 days
- Red cabbage Brassica oleracea var. capitata f. rubra: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 5–10 days
- Rocket Eruca vesicaria: sow 0.5 cm deep, germinates from 5 °C (best 20 °C), comes up after 3–8 days
- Spinach Spinacia oleracea: sow 2 cm deep, germinates from 4 °C (best 15 °C), comes up after 7–14 days
- Spring onion Allium fistulosum: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 8–14 days
- Sweet pea Lathyrus odoratus: sow 2 cm deep, germinates from 10 °C (best 18 °C), comes up after 10–20 days, soak the seed overnight
- Swiss chard Beta vulgaris var. cicla: sow 2 cm deep, germinates from 8 °C (best 20 °C), comes up after 7–14 days
- White cabbage Brassica oleracea var. capitata f. alba: sow 1 cm deep, germinates from 8 °C (best 20 °C), comes up after 5–10 days
- Yarrow Achillea millefolium: don’t cover: light germinator, germinates from 15 °C (best 22 °C), comes up after 10–14 days
Planting out and planting
- Asparagus Asparagus officinalis
- Black-eyed Susan Rudbeckia fulgida
- Broccoli Brassica oleracea var. italica
- Catmint Nepeta × faassenii
- Cauliflower Brassica oleracea var. botrytis
- Chives Allium schoenoprasum
- Columbine Aquilegia vulgaris
- Delphinium Delphinium × elatum
- Endive Cichorium endivia
- French tarragon Artemisia dracunculus
- Globe thistle Echinops ritro
- Ice plant Hylotelephium spectabile
- Kohlrabi Brassica oleracea var. gongylodes
- Lemon balm Melissa officinalis
- Lettuce Lactuca sativa var. capitata
- Lily Lilium regale
- Loose-leaf lettuce Lactuca sativa var. crispa
- Lovage Levisticum officinale
- Lupin Lupinus polyphyllus
- Michaelmas daisy Symphyotrichum novi-belgii
- Mint Mentha
- Onion Allium cepa
- Oregano Origanum vulgare
- Oxeye daisy Leucanthemum vulgare
- Pak choi Brassica rapa subsp. chinensis
- Pansy Viola × wittrockiana
- Parsley Petroselinum crispum
- Phlox Phlox paniculata
- Pot marigold Calendula officinalis
- Potato Solanum tuberosum
- Purple coneflower Echinacea purpurea
- Sage Salvia officinalis
- Shallot Allium cepa var. aggregatum
- Strawberry Fragaria × ananassa
- Sweet pea Lathyrus odoratus
- Thyme Thymus vulgaris
- White cabbage Brassica oleracea var. capitata f. alba
- Woodland sage Salvia nemorosa
- Yarrow Achillea millefolium
Harvest from the vegetable garden
- Asparagus Asparagus officinalis
- Chervil Anthriscus cerefolium
- Chives Allium schoenoprasum
- Lovage Levisticum officinale
- Parsley Petroselinum crispum
- Radish Raphanus sativus
- Rhubarb Rheum × hybridum
- Rocket Eruca vesicaria
- Sage Salvia officinalis
- Spinach Spinacia oleracea
- Swiss chard Beta vulgaris var. cicla
- Thyme Thymus vulgaris
To pick from trees and shrubs
- American basswood: leaves
- Bamboo: young shoots
- Beech: leaves
- Bramble: leaves
- Caucasian lime: leaves
- Common lilac: flowers
- Downy birch: sap, leaves
- Ebbinge’s silverberry: berries
- Hawthorn: leaves
- Hop: young shoots
- Japanese cherry: blossom
- Judas tree: flowers
- Large-leaved lime: leaves
- Lemon: fruit
- Oleaster: berries
- Oriental beech: leaves
- Rosemary: flowers
- Silver birch: sap, leaves
- Small-leaved lime: leaves
- Thorny olive: berries
To pick from perennials and herbs
- Bladder campion: young shoots
- Bloody dock: leaves
- Common mallow: leaves
- Common sorrel: leaves
- Cowslip: flowers, leaves
- Cuckooflower: flowers, leaves
- French sorrel: leaves
- Horned violet: flowers
- Meadow clary: leaves
- Musk mallow: leaves
- Rosebay willowherb: young shoots
- Salad burnet: leaves
- Sweet cicely: leaves
- Sweet violet: flowers, leaves
- Sweet woodruff: leaves
- Wild garlic: leaves, flowers
- Wild strawberry: leaves
- Winter savory: leaves
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