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Rel. frost
Last spring frost (0°C) 14 Jan Frost 9 of 10 years · 20 years of data
Frost-free season 300 days 14 Jan – 10 Nov
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

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Vegetables

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
Season too short
26 Nov – 10 Dec
16 Jun
5-7 wk
14 Jan
21 Jul
0 wk
2 Jan
11 Jul
2 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
Season too short
3 – 17 Dec
28 Jun
4-6 wk
14 Jan
26 Jul
0 wk
2 Jan
16 Jul
2 wk before
Chili pepper
Capsicum annuum
Greenhouse
15 Nov – 13 Dec
28 Mar
8-12 wk
7 Feb
23 May
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
26 Nov – 10 Dec
11 Jun
5-7 wk
14 Jan
16 Jul
0 wk
27 Dec
6 Jul
3 wk before
Garden cucumber
Cucumis sativus
Fleece
24 – 31 Jan
22 May
3-4 wk
21 Feb
12 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
29 Jan – 5 Feb
8 Jun
4-5 wk
5 Mar
6 Jul
7 wk after
4 Mar
26 Jun
7 wk after
Butter bean
Phaseolus lunatus
Greenhouse
15 – 22 Feb
26 May
3-4 wk
15 Mar
16 Jun
9 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
22 Oct – 19 Nov
1 Apr
8-12 wk
14 Jan
27 May
0 wk
14 Jan
17 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
2 Jan
16 Jun
2 wk before
2 Jan
6 Jun
2 wk before
Maize
Zea mays
Fleece
10 – 17 Jan
12 May
3-4 wk
7 Feb
2 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
Season too short
17 – 24 Dec
5 Jul
3-4 wk
14 Jan
26 Jul
0 wk
14 Jan
16 Jul
0 wk
Carrot
Daucus carota subsp. sativus var. sativus
14 Jan
6 Jul
0 wk
14 Jan
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
26 Nov – 10 Dec
11 Jun
5-7 wk
14 Jan
16 Jul
0 wk
27 Dec
6 Jul
3 wk before
Potato
Solanum tuberosum
Season too short
29 Nov – 13 Dec
8 Jun
4-6 wk
10 Jan
6 Jul
1 wk before
10 Jan
26 Jun
1 wk before
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
Season too short
26 Nov – 10 Dec
21 Jun
5-7 wk
14 Jan
26 Jul
0 wk
2 Jan
16 Jul
2 wk before
Pumpkin
Cucurbita pepo
5 – 12 Feb
27 May
3-4 wk
5 Mar
17 Jun
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Season too short
17 – 24 Dec
5 Jul
3-4 wk
14 Jan
26 Jul
0 wk
14 Jan
16 Jul
0 wk
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
3 – 17 Dec
23 Jun
4-6 wk
14 Jan
21 Jul
0 wk
Lettuce
Lactuca sativa
Season too short
17 – 24 Dec
10 Jul
3-4 wk
14 Jan
31 Jul
0 wk
2 Jan
21 Jul
2 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
3 – 17 Dec
23 Jun
4-6 wk
14 Jan
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
29 Nov – 13 Dec
2 Jun
2-4 wk
27 Dec
16 Jun
3 wk before
27 Dec
6 Jun
3 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
2 Jan
16 Jun
2 wk before
2 Jan
6 Jun
2 wk before
Spinach
Spinacia oleracea
Season too short
17 – 24 Dec
25 Jul
3-4 wk
14 Jan
15 Aug
0 wk
9 Dec
5 Aug
5 wk before
Sweet potato
Ipomoea batatas
15 Feb – 1 Mar
4-6 wk
29 Mar
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
13 – 27 Dec
21 Apr
6-8 wk
7 Feb
2 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
24 Jan – 7 Feb
29 May
2-4 wk
21 Feb
12 Jun
5 wk after
4 Mar
2 Jun
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
3 – 17 Dec
23 Jun
4-6 wk
14 Jan
21 Jul
0 wk
Garden pea
Pisum sativum
Season too short
17 – 24 Dec
25 Jun
3-4 wk
14 Jan
16 Jul
0 wk
2 Jan
6 Jul
2 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
22 Jan – 5 Feb
5 May
4-6 wk
5 Mar
2 Jun
7 wk after
Lemon balm
Melissa officinalis
Season too short
5 – 19 Nov
21 May
8-10 wk
14 Jan
16 Jul
0 wk
24 Jan
6 Jul
1 wk after
Dill
Anethum graveolens
18 Jan
26 Jul
1 wk after
Wild chives
Allium schoenoprasum
Season too short
19 Nov – 3 Dec
4 Jun
6-8 wk
14 Jan
16 Jul
0 wk
2 Jan
6 Jul
2 wk before
Spearmint
Mentha spicata
Season too short
22 Oct – 19 Nov
21 May
8-12 wk
14 Jan
16 Jul
0 wk
24 Jan
6 Jul
1 wk after
Coriander
Coriandrum sativum
14 Jan
15 Aug
0 wk
4 Feb
5 Aug
3 wk after
Garden sage
Salvia officinalis
Season too short
5 – 19 Nov
6 May
8-10 wk
14 Jan
1 Jul
0 wk
Common thyme
Thymus vulgaris
Season too short
5 – 19 Nov
11 May
8-10 wk
14 Jan
6 Jul
0 wk
Oregano
Origanum vulgare
Season too short
19 Nov – 3 Dec
25 May
6-8 wk
14 Jan
6 Jul
0 wk
24 Jan
26 Jun
1 wk after
Parsley
Petroselinum crispum
Season too short
19 Nov – 3 Dec
25 May
6-8 wk
14 Jan
6 Jul
0 wk
2 Jan
26 Jun
2 wk before
Rosemary
Salvia rosmarinus
10 Oct – 7 Nov
7 Apr
10-14 wk
16 Jan
16 Jun
0 wk

Annual flowers

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Morning glory
Ipomoea tricolor
5 – 12 Feb
12 May
3-4 wk
5 Mar
2 Jun
7 wk after
Cornflower
Centaurea cyanus
Season too short
14 Jan
16 Jul
0 wk
2 Jan
6 Jul
2 wk before
Statice
Limonium sinuatum
13 – 27 Dec
11 May
8-10 wk
21 Feb
6 Jul
5 wk after
Sweet William
Dianthus barbatus
19 Nov – 3 Dec
6-8 wk
14 Jan
0 wk
30 Jan
2 wk after
Snow-on-the-mountain
Euphorbia marginata
27 Dec – 10 Jan
25 May
6-8 wk
21 Feb
6 Jul
5 wk after
29 Mar
26 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
20 Dec – 3 Jan
25 May
6-8 wk
14 Feb
6 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
29 Nov – 27 Dec
8 Jun
4-8 wk
24 Jan
6 Jul
1 wk after
24 Jan
26 Jun
1 wk after
Foxglove
Digitalis purpurea
5 – 19 Nov
8-10 wk
14 Jan
0 wk
4 Feb
3 wk after
Busy lizzie
Impatiens walleriana
11 Dec – 8 Jan
26 Jun
8-12 wk
5 Mar
21 Aug
7 wk after
Creeping zinnia
Sanvitalia procumbens
27 Dec – 10 Jan
4 Jun
6-8 wk
21 Feb
16 Jul
5 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
10 – 24 Jan
9 May
4-6 wk
21 Feb
6 Jun
5 wk after
Chinese lantern
Physalis alkekengi
Season too short
5 – 19 Nov
21 Apr
8-10 wk
14 Jan
16 Jun
0 wk
Love in a mist
Nigella damascena
14 Jan
1 Jul
0 wk
18 Jan
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
27 Dec – 10 Jan
15 May
6-8 wk
21 Feb
26 Jun
5 wk after
29 Mar
16 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
Season too short
22 Oct – 19 Nov
21 Apr
8-12 wk
14 Jan
16 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
22 Oct – 19 Nov
22 Mar
8-12 wk
14 Jan
17 May
0 wk
Regal-foxtail
Ptilotus nobilis
Fleece
29 Nov – 27 Dec
1 May
8-12 wk
21 Feb
26 Jun
5 wk after
Globe amaranth
Gomphrena globosa
Fleece
27 Dec – 10 Jan
15 May
6-8 wk
21 Feb
26 Jun
5 wk after
Corn poppy
Papaver rhoeas
14 Jan
16 Jul
0 wk
18 Jan
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
Season too short
22 Oct – 19 Nov
11 May
8-12 wk
14 Jan
6 Jul
0 wk
10 Jan
26 Jun
1 wk before
Flossflower
Ageratum houstonianum
25 Dec – 8 Jan
21 May
8-10 wk
5 Mar
16 Jul
7 wk after
Sweet pea
Lathyrus odoratus
Season too short
19 Nov – 10 Dec
1 Jun
5-8 wk
14 Jan
6 Jul
0 wk
Stock
Matthiola incana
Season too short
19 Nov – 3 Dec
4 Jun
6-8 wk
14 Jan
16 Jul
0 wk
14 Jan
6 Jul
0 wk
Wormwood
Artemisia absinthium
Season too short
19 Nov – 3 Dec
5 May
6-8 wk
14 Jan
16 Jun
0 wk
14 Jan
6 Jun
0 wk
Mexican sunflower
Tithonia rotundifolia
Fleece
10 – 24 Jan
24 May
4-6 wk
21 Feb
21 Jun
5 wk after
Garden pansy
Viola × wittrockiana
Season too short
5 – 19 Nov
21 May
8-10 wk
14 Jan
16 Jul
0 wk
10 Jan
6 Jul
1 wk before
Petunia
Petunia
29 Nov – 27 Dec
11 May
8-12 wk
21 Feb
6 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
Season too short
19 Nov – 3 Dec
5 May
6-8 wk
14 Jan
16 Jun
0 wk
4 Feb
6 Jun
3 wk after
Common zinnia
Zinnia elegans
10 – 24 Jan
8 Jun
4-6 wk
21 Feb
6 Jul
5 wk after
Common morning glory
Ipomoea purpurea
29 Jan – 12 Feb
12 May
3-5 wk
5 Mar
2 Jun
7 wk after
Garden cosmos
Cosmos bipinnatus
10 – 24 Jan
8 Jun
4-6 wk
21 Feb
6 Jul
5 wk after
4 Mar
26 Jun
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
11 Dec – 8 Jan
31 May
8-12 wk
5 Mar
26 Jul
7 wk after
Bee balm
Monarda didyma
Season too short
22 Oct – 19 Nov
21 Apr
8-12 wk
14 Jan
16 Jun
0 wk
24 Jan
6 Jun
1 wk after
Yarrow
Achillea millefolium
Season too short
19 Nov – 3 Dec
5 Apr
6-8 wk
14 Jan
17 May
0 wk
14 Jan
7 May
0 wk
Safflower
Carthamus tinctorius
Season too short
14 Jan
16 Jun
0 wk
2 Jan
6 Jun
2 wk before
Iceland poppy
Papaver nudicaule
Season too short
19 Nov – 3 Dec
25 May
6-8 wk
14 Jan
6 Jul
0 wk
27 Dec
26 Jun
3 wk before
Bishop's flower
Ammi majus
Season too short
3 – 17 Dec
8 Jun
4-6 wk
14 Jan
6 Jul
0 wk
14 Jan
26 Jun
0 wk
Drumsticks
Pycnosorus globosus
11 – 25 Dec
28 Mar
10-12 wk
5 Mar
6 Jun
7 wk after
Sunflower
Helianthus annuus
24 – 31 Jan
15 Jun
3-4 wk
21 Feb
6 Jul
5 wk after
18 Feb
26 Jun
5 wk after
China aster
Callistephus chinensis
27 Dec – 10 Jan
4 Jun
6-8 wk
21 Feb
16 Jul
5 wk after
4 Mar
6 Jul
7 wk after
Annual phlox
Phlox drummondii
13 – 27 Dec
4 Jun
6-8 wk
7 Feb
16 Jul
3 wk after
4 Mar
6 Jul
7 wk after
Hollyhock
Alcea rosea
19 Nov – 3 Dec
6-8 wk
14 Jan
0 wk
4 Feb
3 wk after
Alpine delphinium
Delphinium elatum
Season too short
22 Oct – 19 Nov
21 Apr
8-12 wk
14 Jan
16 Jun
0 wk
24 Jan
6 Jun
1 wk after
African marigold
Tagetes erecta
27 Dec – 10 Jan
4 Jun
6-8 wk
21 Feb
16 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
21 Nov – 5 Dec
25 May
6-8 wk
16 Jan
6 Jul
0 wk
4 Mar
26 Jun
7 wk after
Wood sage
Salvia nemorosa
Season too short
5 – 19 Nov
11 Apr
8-10 wk
14 Jan
6 Jun
0 wk
24 Jan
27 May
1 wk after
Black-eyed susan vine
Thunbergia alata
25 Dec – 22 Jan
21 Apr
6-10 wk
5 Mar
2 Jun
7 wk after
California goldenpoppy
Eschscholzia californica
14 Jan
16 Jul
0 wk
18 Jan
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
13 – 27 Dec
11 May
8-10 wk
21 Feb
6 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
19 Nov – 3 Dec
5 May
6-8 wk
14 Jan
16 Jun
0 wk
14 Jan
6 Jun
0 wk