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Rel. frost
Last spring frost (0°C) 14 Apr Normal year · 20 years of data
Frost-free season 209 days 14 Apr – 9 Nov

Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
28 Mar – 11 Apr
5-7 wk
16 May
5 wk after
8 Apr
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
23 Mar – 6 Apr
4-6 wk
4 May
3 wk after
8 Apr
1 wk before
Chili pepper
Capsicum annuum
Fleece
17 Mar – 14 Apr
8-12 wk
9 Jun
8 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
25 Jan – 8 Feb
5-7 wk
15 Mar
4 wk before
1 Apr
2 wk before
Cucumber
Cucumis sativus
Fleece
12 – 19 May
3-4 wk
9 Jun
8 wk after
Florence Fennel
Foeniculum vulgare
Fleece
5 – 12 May
4-5 wk
9 Jun
8 wk after
10 May
4 wk after
Butter bean
Phaseolus lunatus
Greenhouse
27 Apr – 4 May
3-4 wk
25 May
6 wk after
Onion
Allium cepa (Cepa-gruppen)
20 Jan – 17 Feb
8-12 wk
14 Apr
Vid frost
27 Apr
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
27 Apr
2 wk after
27 Apr
2 wk after
Sweetcorn
Zea mays
Fleece
2 – 9 May
3-4 wk
30 May
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
18 – 25 Apr
3-4 wk
16 May
5 wk after
27 Apr
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
1 Apr
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
25 Jan – 8 Feb
5-7 wk
15 Mar
4 wk before
1 Apr
2 wk before
Potato
Solanum tuberosum
8 – 22 Mar
4-6 wk
19 Apr
1 wk after
19 Apr
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
25 Jan – 8 Feb
5-7 wk
15 Mar
4 wk before
8 Apr
1 wk before
Pumpkin
Cucurbita pepo
Fleece
12 – 19 May
3-4 wk
9 Jun
8 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
18 – 25 Apr
3-4 wk
16 May
5 wk after
27 Apr
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
23 Mar – 6 Apr
4-6 wk
4 May
3 wk after
Lettuce
Lactuca sativa
8 – 15 Mar
3-4 wk
5 Apr
1 wk before
8 Apr
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
22 Feb – 8 Mar
4-6 wk
5 Apr
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 Mar
2-4 wk
1 Apr
2 wk before
1 Apr
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
8 Apr
1 wk before
8 Apr
1 wk before
Spinach
Spinacia oleracea
25 Feb – 4 Mar
3-4 wk
25 Mar
3 wk before
25 Mar
3 wk before
Sweet potato
Ipomoea batatas
16 – 30 May
4-6 wk
27 Jun
11 wk after
Tomato
Solanum lycopersicum
14 – 28 Apr
6-8 wk
9 Jun
8 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
12 – 26 May
2-4 wk
9 Jun
8 wk after
25 May
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
23 Mar – 6 Apr
4-6 wk
4 May
3 wk after
Pea
Pisum sativum
25 Feb – 4 Mar
3-4 wk
25 Mar
3 wk before
8 Apr
1 wk before
Current date Soon Date passed

Herbs

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Basil
Ocimum basilicum
Fleece
18 Apr – 2 May
4-6 wk
30 May
7 wk after
Lemon balm
Melissa officinalis
3 – 17 Feb
8-10 wk
14 Apr
Vid frost
10 May
4 wk after
Dill
Anethum graveolens
8 Apr
1 wk before
Chives
Allium schoenoprasum
18 Jan – 1 Feb
6-8 wk
15 Mar
4 wk before
8 Apr
1 wk before
Spearmint
Mentha spicata
31 Dec – 28 Jan
8-12 wk
25 Mar
3 wk before
10 May
4 wk after
Coriander
Coriandrum sativum
27 Apr
2 wk after
Sage
Salvia officinalis
7 – 21 Mar
8-10 wk
16 May
5 wk after
Thyme
Thymus vulgaris
23 Feb – 9 Mar
8-10 wk
4 May
3 wk after
Oregano
Origanum vulgare
26 Feb – 12 Mar
6-8 wk
23 Apr
1 wk after
10 May
4 wk after
Parsley
Petroselinum crispum
28 Jan – 11 Feb
6-8 wk
25 Mar
3 wk before
8 Apr
1 wk before
Rosemary
Salvia rosmarinus
7 Feb – 7 Mar
10-14 wk
16 May
5 wk after
Current date Soon Date passed

Annual flowers

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Morning glory
Ipomoea tricolor
Greenhouse
12 – 19 May
3-4 wk
9 Jun
8 wk after
Cornflower
Centaurea cyanus
25 Mar
3 wk before
8 Apr
1 wk before
Statice
Limonium sinuatum
31 Mar – 14 Apr
8-10 wk
9 Jun
8 wk after
Sweet William
Dianthus barbatus
28 Jan – 11 Feb
6-8 wk
25 Mar
3 wk before
19 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
14 – 28 Apr
6-8 wk
9 Jun
8 wk after
27 Jun
11 wk after
Dahlia
Dahlia × pinnata
7 – 21 Apr
6-8 wk
2 Jun
7 wk after
Dahlia (tubers)
Dahlia × pinnata
15 Mar – 12 Apr
4-8 wk
10 May
4 wk after
10 May
4 wk after
Foxglove
Digitalis purpurea
14 – 28 Jan
8-10 wk
25 Mar
3 wk before
27 Apr
2 wk after
Busy lizzie
Impatiens walleriana
28 Mar – 25 Apr
8-12 wk
20 Jun
10 wk after
Creeping zinnia
Sanvitalia procumbens
14 – 28 Apr
6-8 wk
9 Jun
8 wk after
Hyacinth bean
Dolichos lablab
Season too short
28 Apr – 12 May
4-6 wk
9 Jun
8 wk after
Chinese lantern
Physalis alkekengi
7 – 21 Mar
8-10 wk
16 May
5 wk after
Love in a mist
Nigella damascena
8 Apr
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
30 Mar – 13 Apr
6-8 wk
25 May
6 wk after
30 May
7 wk after
Tall verbena
Verbena bonariensis
21 Feb – 21 Mar
8-12 wk
16 May
5 wk after
Cardoon
Cynara cardunculus
Greenhouse
15 Feb – 15 Mar
8-12 wk
10 May
4 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
17 Mar – 14 Apr
8-12 wk
9 Jun
8 wk after
Globe amaranth
Gomphrena globosa
Fleece
14 – 28 Apr
6-8 wk
9 Jun
8 wk after
Corn poppy
Papaver rhoeas
8 Apr
1 wk before
Snapdragon
Antirrhinum majus
11 Jan – 8 Feb
8-12 wk
5 Apr
1 wk before
19 Apr
1 wk after
Flossflower
Ageratum houstonianum
Fleece
31 Mar – 14 Apr
8-10 wk
9 Jun
8 wk after
Sweet pea
Lathyrus odoratus
28 Jan – 18 Feb
5-8 wk
25 Mar
3 wk before
Stock
Matthiola incana
8 – 22 Feb
6-8 wk
5 Apr
1 wk before
27 Apr
2 wk after
Wormwood
Artemisia absinthium
28 Jan – 11 Feb
6-8 wk
25 Mar
3 wk before
27 Apr
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
28 Apr – 12 May
4-6 wk
9 Jun
8 wk after
Pansy
Viola × wittrockiana
4 – 18 Jan
8-10 wk
15 Mar
4 wk before
19 Apr
1 wk after
Petunia
Petunia
17 Mar – 14 Apr
8-12 wk
9 Jun
8 wk after
Scabious
Scabiosa atropurpurea
21 Mar – 4 Apr
6-8 wk
16 May
5 wk after
25 May
6 wk after
Zinnia
Zinnia elegans
28 Apr – 12 May
4-6 wk
9 Jun
8 wk after
Common morning glory
Ipomoea purpurea
Fleece
5 – 19 May
3-5 wk
9 Jun
8 wk after
Cosmos
Cosmos bipinnatus
28 Apr – 12 May
4-6 wk
9 Jun
8 wk after
25 May
6 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
17 Mar – 14 Apr
8-12 wk
9 Jun
8 wk after
Bee balm
Monarda didyma
20 Jan – 17 Feb
8-12 wk
14 Apr
Vid frost
10 May
4 wk after
Yarrow
Achillea millefolium
28 Jan – 11 Feb
6-8 wk
25 Mar
3 wk before
27 Apr
2 wk after
Safflower
Carthamus tinctorius
25 Mar
3 wk before
8 Apr
1 wk before
Iceland poppy
Papaver nudicaule
18 Jan – 1 Feb
6-8 wk
15 Mar
4 wk before
1 Apr
2 wk before
Bishop's flower
Ammi majus
18 Mar – 1 Apr
4-6 wk
29 Apr
2 wk after
27 Apr
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
2 – 16 Mar
10-12 wk
25 May
6 wk after
Sunflower
Helianthus annuus
12 – 19 May
3-4 wk
9 Jun
8 wk after
10 May
4 wk after
China aster
Callistephus chinensis
Fleece
30 Mar – 13 Apr
6-8 wk
25 May
6 wk after
10 May
4 wk after
Annual phlox
Phlox drummondii
30 Mar – 13 Apr
6-8 wk
25 May
6 wk after
25 May
6 wk after
Hollyhock
Alcea rosea
28 Jan – 11 Feb
6-8 wk
25 Mar
3 wk before
27 Apr
2 wk after
Delphinium
Delphinium elatum
9 Feb – 9 Mar
8-12 wk
4 May
3 wk after
10 May
4 wk after
African marigold
Tagetes erecta
14 – 28 Apr
6-8 wk
9 Jun
8 wk after
Black-eyed Susan
Rudbeckia hirta
21 Mar – 4 Apr
6-8 wk
16 May
5 wk after
25 May
6 wk after
Woodland sage
Salvia nemorosa
12 – 26 Feb
8-10 wk
23 Apr
1 wk after
10 May
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
31 Mar – 28 Apr
6-10 wk
9 Jun
8 wk after
California goldenpoppy
Eschscholzia californica
8 Apr
1 wk before
Painted tongue
Salpiglossis sinuata
31 Mar – 14 Apr
8-10 wk
9 Jun
8 wk after
Water forget-me-not
Myosotis scorpioides
28 Jan – 11 Feb
6-8 wk
25 Mar
3 wk before
27 Apr
2 wk after
Current date Soon Date passed