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Rel. frost
Last spring frost (0°C) 19 Apr Frost 1 of 10 years · 20 years of data
Frost-free season 226 days 19 Apr – 1 Dec
Probability that frost is over

90% = Half of years are frost-free by this date. More about frost & season →

Custom date

Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
2 – 16 Apr
5-7 wk
21 May
5 wk after
13 Apr
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
28 Mar – 11 Apr
4-6 wk
9 May
3 wk after
13 Apr
1 wk before
Chili pepper
Capsicum annuum
Fleece
22 Mar – 19 Apr
8-12 wk
14 Jun
8 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
30 Jan – 13 Feb
5-7 wk
20 Mar
4 wk before
6 Apr
2 wk before
Cucumber
Cucumis sativus
28 May – 4 Jun
3-4 wk
25 Jun
10 wk after
Florence Fennel
Foeniculum vulgare
Fleece
10 – 17 May
4-5 wk
14 Jun
8 wk after
15 May
4 wk after
Butter bean
Phaseolus lunatus
Greenhouse
2 – 9 May
3-4 wk
30 May
6 wk after
Onion
Allium cepa (Cepa-gruppen)
25 Jan – 22 Feb
8-12 wk
19 Apr
Vid frost
2 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
2 May
2 wk after
2 May
2 wk after
Sweetcorn
Zea mays
Fleece
7 – 14 May
3-4 wk
4 Jun
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
23 – 30 Apr
3-4 wk
21 May
5 wk after
2 May
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
6 Apr
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
30 Jan – 13 Feb
5-7 wk
20 Mar
4 wk before
6 Apr
2 wk before
Potato
Solanum tuberosum
13 – 27 Mar
4-6 wk
24 Apr
1 wk after
24 Apr
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
30 Jan – 13 Feb
5-7 wk
20 Mar
4 wk before
13 Apr
1 wk before
Pumpkin
Cucurbita pepo
28 May – 4 Jun
3-4 wk
25 Jun
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
23 – 30 Apr
3-4 wk
21 May
5 wk after
2 May
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Mar – 11 Apr
4-6 wk
9 May
3 wk after
Lettuce
Lactuca sativa
13 – 20 Mar
3-4 wk
10 Apr
1 wk before
13 Apr
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
27 Feb – 13 Mar
4-6 wk
10 Apr
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
9 – 23 Mar
2-4 wk
6 Apr
2 wk before
6 Apr
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
13 Apr
1 wk before
13 Apr
1 wk before
Spinach
Spinacia oleracea
2 – 9 Mar
3-4 wk
30 Mar
3 wk before
30 Mar
3 wk before
Sweet potato
Ipomoea batatas
21 May – 4 Jun
4-6 wk
2 Jul
11 wk after
Tomato
Solanum lycopersicum
19 Apr – 3 May
6-8 wk
14 Jun
8 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
17 – 31 May
2-4 wk
14 Jun
8 wk after
30 May
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Mar – 11 Apr
4-6 wk
9 May
3 wk after
Pea
Pisum sativum
2 – 9 Mar
3-4 wk
30 Mar
3 wk before
13 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
23 Apr – 7 May
4-6 wk
4 Jun
7 wk after
Lemon balm
Melissa officinalis
8 – 22 Feb
8-10 wk
19 Apr
Vid frost
15 May
4 wk after
Dill
Anethum graveolens
13 Apr
1 wk before
Chives
Allium schoenoprasum
23 Jan – 6 Feb
6-8 wk
20 Mar
4 wk before
13 Apr
1 wk before
Spearmint
Mentha spicata
5 Jan – 2 Feb
8-12 wk
30 Mar
3 wk before
15 May
4 wk after
Coriander
Coriandrum sativum
2 May
2 wk after
Sage
Salvia officinalis
12 – 26 Mar
8-10 wk
21 May
5 wk after
Thyme
Thymus vulgaris
28 Feb – 14 Mar
8-10 wk
9 May
3 wk after
Oregano
Origanum vulgare
3 – 17 Mar
6-8 wk
28 Apr
1 wk after
15 May
4 wk after
Parsley
Petroselinum crispum
2 – 16 Feb
6-8 wk
30 Mar
3 wk before
13 Apr
1 wk before
Rosemary
Salvia rosmarinus
12 Feb – 12 Mar
10-14 wk
21 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
Fleece
28 May – 4 Jun
3-4 wk
25 Jun
10 wk after
Cornflower
Centaurea cyanus
30 Mar
3 wk before
13 Apr
1 wk before
Statice
Limonium sinuatum
5 – 19 Apr
8-10 wk
14 Jun
8 wk after
Sweet William
Dianthus barbatus
2 – 16 Feb
6-8 wk
30 Mar
3 wk before
24 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
19 Apr – 3 May
6-8 wk
14 Jun
8 wk after
2 Jul
11 wk after
Dahlia
Dahlia × pinnata
12 – 26 Apr
6-8 wk
7 Jun
7 wk after
Dahlia (tubers)
Dahlia × pinnata
20 Mar – 17 Apr
4-8 wk
15 May
4 wk after
15 May
4 wk after
Foxglove
Digitalis purpurea
19 Jan – 2 Feb
8-10 wk
30 Mar
3 wk before
2 May
2 wk after
Busy lizzie
Impatiens walleriana
2 – 30 Apr
8-12 wk
25 Jun
10 wk after
Creeping zinnia
Sanvitalia procumbens
19 Apr – 3 May
6-8 wk
14 Jun
8 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
3 – 17 May
4-6 wk
14 Jun
8 wk after
Chinese lantern
Physalis alkekengi
12 – 26 Mar
8-10 wk
21 May
5 wk after
Love in a mist
Nigella damascena
13 Apr
1 wk before
Strawflower
Xerochrysum bracteatum
19 Apr – 3 May
6-8 wk
14 Jun
8 wk after
2 Jul
11 wk after
Tall verbena
Verbena bonariensis
26 Feb – 26 Mar
8-12 wk
21 May
5 wk after
Cardoon
Cynara cardunculus
Fleece
7 Mar – 4 Apr
8-12 wk
30 May
6 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
22 Mar – 19 Apr
8-12 wk
14 Jun
8 wk after
Globe amaranth
Gomphrena globosa
Fleece
19 Apr – 3 May
6-8 wk
14 Jun
8 wk after
Corn poppy
Papaver rhoeas
13 Apr
1 wk before
Snapdragon
Antirrhinum majus
16 Jan – 13 Feb
8-12 wk
10 Apr
1 wk before
24 Apr
1 wk after
Flossflower
Ageratum houstonianum
16 – 30 Apr
8-10 wk
25 Jun
10 wk after
Sweet pea
Lathyrus odoratus
2 – 23 Feb
5-8 wk
30 Mar
3 wk before
Stock
Matthiola incana
13 – 27 Feb
6-8 wk
10 Apr
1 wk before
2 May
2 wk after
Wormwood
Artemisia absinthium
2 – 16 Feb
6-8 wk
30 Mar
3 wk before
2 May
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
3 – 17 May
4-6 wk
14 Jun
8 wk after
Pansy
Viola × wittrockiana
9 – 23 Jan
8-10 wk
20 Mar
4 wk before
24 Apr
1 wk after
Petunia
Petunia
22 Mar – 19 Apr
8-12 wk
14 Jun
8 wk after
Scabious
Scabiosa atropurpurea
26 Mar – 9 Apr
6-8 wk
21 May
5 wk after
30 May
6 wk after
Zinnia
Zinnia elegans
3 – 17 May
4-6 wk
14 Jun
8 wk after
Common morning glory
Ipomoea purpurea
21 May – 4 Jun
3-5 wk
25 Jun
10 wk after
Cosmos
Cosmos bipinnatus
3 – 17 May
4-6 wk
14 Jun
8 wk after
30 May
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
2 – 30 Apr
8-12 wk
25 Jun
10 wk after
Bee balm
Monarda didyma
25 Jan – 22 Feb
8-12 wk
19 Apr
Vid frost
15 May
4 wk after
Yarrow
Achillea millefolium
2 – 16 Feb
6-8 wk
30 Mar
3 wk before
2 May
2 wk after
Safflower
Carthamus tinctorius
30 Mar
3 wk before
13 Apr
1 wk before
Iceland poppy
Papaver nudicaule
23 Jan – 6 Feb
6-8 wk
20 Mar
4 wk before
6 Apr
2 wk before
Bishop's flower
Ammi majus
23 Mar – 6 Apr
4-6 wk
4 May
2 wk after
2 May
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
22 Mar – 5 Apr
10-12 wk
14 Jun
8 wk after
Sunflower
Helianthus annuus
17 – 24 May
3-4 wk
14 Jun
8 wk after
15 May
4 wk after
China aster
Callistephus chinensis
19 Apr – 3 May
6-8 wk
14 Jun
8 wk after
30 May
6 wk after
Annual phlox
Phlox drummondii
4 – 18 Apr
6-8 wk
30 May
6 wk after
30 May
6 wk after
Hollyhock
Alcea rosea
2 – 16 Feb
6-8 wk
30 Mar
3 wk before
2 May
2 wk after
Delphinium
Delphinium elatum
14 Feb – 14 Mar
8-12 wk
9 May
3 wk after
15 May
4 wk after
African marigold
Tagetes erecta
19 Apr – 3 May
6-8 wk
14 Jun
8 wk after
Black-eyed Susan
Rudbeckia hirta
26 Mar – 9 Apr
6-8 wk
21 May
5 wk after
30 May
6 wk after
Woodland sage
Salvia nemorosa
17 Feb – 3 Mar
8-10 wk
28 Apr
1 wk after
15 May
4 wk after
Black-eyed susan vine
Thunbergia alata
16 Apr – 14 May
6-10 wk
25 Jun
10 wk after
California goldenpoppy
Eschscholzia californica
13 Apr
1 wk before
Painted tongue
Salpiglossis sinuata
5 – 19 Apr
8-10 wk
14 Jun
8 wk after
Water forget-me-not
Myosotis scorpioides
2 – 16 Feb
6-8 wk
30 Mar
3 wk before
2 May
2 wk after
Current date Soon Date passed