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Rel. frost
Last spring frost (0°C) 20 Jan Frost 3 of 4 years · 20 years of data
Frost-free season 311 days 20 Jan – 27 Nov
Probability that frost is over

25% = 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
2 – 16 Dec
17 Jun
5-7 wk
20 Jan
22 Jul
0 wk
22 Dec
12 Jul
4 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
Season too short
9 – 23 Dec
29 Jun
4-6 wk
20 Jan
27 Jul
0 wk
22 Dec
17 Jul
4 wk before
Chili pepper
Capsicum annuum
Fleece
5 Dec – 2 Jan
12 Apr
8-12 wk
27 Feb
7 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
Season too short
2 – 16 Dec
12 Jun
5-7 wk
20 Jan
17 Jul
0 wk
12 Dec
7 Jul
6 wk before
Garden cucumber
Cucumis sativus
11 – 18 Feb
6 Jun
3-4 wk
11 Mar
27 Jun
7 wk after
Florence Fennel
Foeniculum vulgare
4 – 11 Feb
9 Jun
4-5 wk
11 Mar
7 Jul
7 wk after
25 Feb
27 Jun
5 wk after
Butter bean
Phaseolus lunatus
Greenhouse
21 – 28 Feb
6 Jun
3-4 wk
21 Mar
27 Jun
9 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
28 Oct – 25 Nov
2 Apr
8-12 wk
20 Jan
28 May
0 wk
8 Jan
18 May
2 wk before
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
22 Dec
17 Jun
4 wk before
22 Dec
7 Jun
4 wk before
Maize
Zea mays
30 Jan – 6 Feb
27 May
3-4 wk
27 Feb
17 Jun
5 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
Season too short
23 – 30 Dec
6 Jul
3-4 wk
20 Jan
27 Jul
0 wk
8 Jan
17 Jul
2 wk before
Carrot
Daucus carota subsp. sativus var. sativus
20 Jan
7 Jul
0 wk
8 Jan
27 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
Season too short
2 – 16 Dec
12 Jun
5-7 wk
20 Jan
17 Jul
0 wk
12 Dec
7 Jul
6 wk before
Potato
Solanum tuberosum
Season too short
21 Nov – 5 Dec
9 Jun
4-6 wk
2 Jan
7 Jul
3 wk before
2 Jan
27 Jun
3 wk before
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
Season too short
2 – 16 Dec
22 Jun
5-7 wk
20 Jan
27 Jul
0 wk
22 Dec
17 Jul
4 wk before
Pumpkin
Cucurbita pepo
11 – 18 Feb
8 Jul
3-4 wk
11 Mar
29 Jul
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Season too short
23 – 30 Dec
6 Jul
3-4 wk
20 Jan
27 Jul
0 wk
8 Jan
17 Jul
2 wk before
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
Season too short
9 – 23 Dec
24 Jun
4-6 wk
20 Jan
22 Jul
0 wk
Lettuce
Lactuca sativa
Season too short
23 – 30 Dec
11 Jul
3-4 wk
20 Jan
1 Aug
0 wk
22 Dec
22 Jul
4 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
Season too short
9 – 23 Dec
24 Jun
4-6 wk
20 Jan
22 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Season too short
14 – 28 Nov
3 Jun
2-4 wk
12 Dec
17 Jun
6 wk before
12 Dec
7 Jun
6 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
22 Dec
17 Jun
4 wk before
22 Dec
7 Jun
4 wk before
Spinach
Spinacia oleracea
Season too short
23 – 30 Dec
26 Jul
3-4 wk
20 Jan
16 Aug
0 wk
19 Nov
6 Aug
9 wk before
Sweet potato
Ipomoea batatas
16 Feb – 2 Mar
4-6 wk
30 Mar
10 wk after
Garden tomato
Solanum lycopersicum
2 – 16 Jan
6 May
6-8 wk
27 Feb
17 Jun
5 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
30 Jan – 13 Feb
10 Jul
2-4 wk
27 Feb
24 Jul
5 wk after
25 Feb
14 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
Season too short
9 – 23 Dec
24 Jun
4-6 wk
20 Jan
22 Jul
0 wk
Garden pea
Pisum sativum
Season too short
23 – 30 Dec
26 Jun
3-4 wk
20 Jan
17 Jul
0 wk
22 Dec
7 Jul
4 wk before

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
28 Jan – 11 Feb
16 Jun
4-6 wk
11 Mar
14 Jul
7 wk after
Lemon balm
Melissa officinalis
Season too short
11 – 25 Nov
22 May
8-10 wk
20 Jan
17 Jul
0 wk
19 Jan
7 Jul
0 wk
Dill
Anethum graveolens
13 Jan
27 Jul
1 wk before
Wild chives
Allium schoenoprasum
Season too short
25 Nov – 9 Dec
5 Jun
6-8 wk
20 Jan
17 Jul
0 wk
22 Dec
7 Jul
4 wk before
Spearmint
Mentha spicata
Season too short
28 Oct – 25 Nov
22 May
8-12 wk
20 Jan
17 Jul
0 wk
19 Jan
7 Jul
0 wk
Coriander
Coriandrum sativum
20 Jan
16 Aug
0 wk
30 Jan
6 Aug
1 wk after
Garden sage
Salvia officinalis
Season too short
11 – 25 Nov
7 May
8-10 wk
20 Jan
2 Jul
0 wk
Common thyme
Thymus vulgaris
Season too short
11 – 25 Nov
12 May
8-10 wk
20 Jan
7 Jul
0 wk
Oregano
Origanum vulgare
Season too short
25 Nov – 9 Dec
26 May
6-8 wk
20 Jan
7 Jul
0 wk
19 Jan
27 Jun
0 wk
Parsley
Petroselinum crispum
Season too short
25 Nov – 9 Dec
26 May
6-8 wk
20 Jan
7 Jul
0 wk
22 Dec
27 Jun
4 wk before
Rosemary
Salvia rosmarinus
16 Oct – 13 Nov
8 Apr
10-14 wk
22 Jan
17 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
11 – 18 Feb
23 Jun
3-4 wk
11 Mar
14 Jul
7 wk after
Cornflower
Centaurea cyanus
Season too short
20 Jan
17 Jul
0 wk
22 Dec
7 Jul
4 wk before
Statice
Limonium sinuatum
19 Dec – 2 Jan
12 May
8-10 wk
27 Feb
7 Jul
5 wk after
Sweet William
Dianthus barbatus
25 Nov – 9 Dec
6-8 wk
20 Jan
0 wk
25 Jan
1 wk after
Snow-on-the-mountain
Euphorbia marginata
2 – 16 Jan
26 May
6-8 wk
27 Feb
7 Jul
5 wk after
30 Mar
27 Jun
10 wk after
Pinnate dahlia
Dahlia × pinnata
26 Dec – 9 Jan
26 May
6-8 wk
20 Feb
7 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Season too short
24 Nov – 22 Dec
9 Jun
4-8 wk
19 Jan
7 Jul
0 wk
19 Jan
27 Jun
0 wk
Foxglove
Digitalis purpurea
11 – 25 Nov
8-10 wk
20 Jan
0 wk
30 Jan
1 wk after
Busy lizzie
Impatiens walleriana
17 Dec – 14 Jan
7 Jul
8-12 wk
11 Mar
1 Sep
7 wk after
Creeping zinnia
Sanvitalia procumbens
2 – 16 Jan
5 Jun
6-8 wk
27 Feb
17 Jul
5 wk after
Hyacinth bean
Dolichos lablab
Fleece
28 Jan – 11 Feb
17 May
4-6 wk
11 Mar
14 Jun
7 wk after
Chinese lantern
Physalis alkekengi
Season too short
11 – 25 Nov
22 Apr
8-10 wk
20 Jan
17 Jun
0 wk
Love in a mist
Nigella damascena
20 Jan
2 Jul
0 wk
13 Jan
22 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
2 – 16 Jan
16 May
6-8 wk
27 Feb
27 Jun
5 wk after
30 Mar
17 Jun
10 wk after
Purple-top vervain
Verbena bonariensis
Season too short
28 Oct – 25 Nov
22 Apr
8-12 wk
20 Jan
17 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
28 Oct – 25 Nov
23 Mar
8-12 wk
20 Jan
18 May
0 wk
Regal-foxtail
Ptilotus nobilis
17 Dec – 14 Jan
9 May
8-12 wk
11 Mar
4 Jul
7 wk after
Globe amaranth
Gomphrena globosa
14 – 28 Jan
23 May
6-8 wk
11 Mar
4 Jul
7 wk after
Corn poppy
Papaver rhoeas
20 Jan
17 Jul
0 wk
13 Jan
7 Jul
1 wk before
Snapdragon
Antirrhinum majus
Season too short
28 Oct – 25 Nov
12 May
8-12 wk
20 Jan
7 Jul
0 wk
2 Jan
27 Jun
3 wk before
Flossflower
Ageratum houstonianum
31 Dec – 14 Jan
22 May
8-10 wk
11 Mar
17 Jul
7 wk after
Sweet pea
Lathyrus odoratus
Season too short
25 Nov – 16 Dec
2 Jun
5-8 wk
20 Jan
7 Jul
0 wk
Stock
Matthiola incana
Season too short
25 Nov – 9 Dec
5 Jun
6-8 wk
20 Jan
17 Jul
0 wk
8 Jan
7 Jul
2 wk before
Wormwood
Artemisia absinthium
Season too short
25 Nov – 9 Dec
6 May
6-8 wk
20 Jan
17 Jun
0 wk
8 Jan
7 Jun
2 wk before
Mexican sunflower
Tithonia rotundifolia
28 Jan – 11 Feb
1 Jun
4-6 wk
11 Mar
29 Jun
7 wk after
Garden pansy
Viola × wittrockiana
Season too short
11 – 25 Nov
22 May
8-10 wk
20 Jan
17 Jul
0 wk
2 Jan
7 Jul
3 wk before
Petunia
Petunia
5 Dec – 2 Jan
12 May
8-12 wk
27 Feb
7 Jul
5 wk after
Sweet Scabious
Scabiosa atropurpurea
Season too short
25 Nov – 9 Dec
6 May
6-8 wk
20 Jan
17 Jun
0 wk
30 Jan
7 Jun
1 wk after
Common zinnia
Zinnia elegans
16 – 30 Jan
19 Jun
4-6 wk
27 Feb
17 Jul
5 wk after
Common morning glory
Ipomoea purpurea
4 – 18 Feb
23 Jun
3-5 wk
11 Mar
14 Jul
7 wk after
Garden cosmos
Cosmos bipinnatus
16 – 30 Jan
9 Jun
4-6 wk
27 Feb
7 Jul
5 wk after
25 Feb
27 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
6 Jan – 3 Feb
8 Jun
8-12 wk
31 Mar
3 Aug
10 wk after
Bee balm
Monarda didyma
Season too short
28 Oct – 25 Nov
22 Apr
8-12 wk
20 Jan
17 Jun
0 wk
19 Jan
7 Jun
0 wk
Yarrow
Achillea millefolium
Season too short
25 Nov – 9 Dec
6 Apr
6-8 wk
20 Jan
18 May
0 wk
8 Jan
8 May
2 wk before
Safflower
Carthamus tinctorius
Season too short
20 Jan
17 Jun
0 wk
22 Dec
7 Jun
4 wk before
Iceland poppy
Papaver nudicaule
Season too short
25 Nov – 9 Dec
26 May
6-8 wk
20 Jan
7 Jul
0 wk
12 Dec
27 Jun
6 wk before
Bishop's flower
Ammi majus
Season too short
9 – 23 Dec
9 Jun
4-6 wk
20 Jan
7 Jul
0 wk
8 Jan
27 Jun
2 wk before
Drumsticks
Pycnosorus globosus
17 – 31 Dec
8 Apr
10-12 wk
11 Mar
17 Jun
7 wk after
Sunflower
Helianthus annuus
30 Jan – 6 Feb
16 Jun
3-4 wk
27 Feb
7 Jul
5 wk after
10 Feb
27 Jun
3 wk after
China aster
Callistephus chinensis
2 – 16 Jan
5 Jun
6-8 wk
27 Feb
17 Jul
5 wk after
25 Feb
7 Jul
5 wk after
Annual phlox
Phlox drummondii
19 Dec – 2 Jan
5 Jun
6-8 wk
13 Feb
17 Jul
3 wk after
25 Feb
7 Jul
5 wk after
Hollyhock
Alcea rosea
25 Nov – 9 Dec
6-8 wk
20 Jan
0 wk
30 Jan
1 wk after
Alpine delphinium
Delphinium elatum
Season too short
28 Oct – 25 Nov
22 Apr
8-12 wk
20 Jan
17 Jun
0 wk
19 Jan
7 Jun
0 wk
African marigold
Tagetes erecta
2 – 16 Jan
5 Jun
6-8 wk
27 Feb
17 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
27 Nov – 11 Dec
26 May
6-8 wk
22 Jan
7 Jul
0 wk
25 Feb
27 Jun
5 wk after
Wood sage
Salvia nemorosa
Season too short
11 – 25 Nov
12 Apr
8-10 wk
20 Jan
7 Jun
0 wk
19 Jan
28 May
0 wk
Black-eyed susan vine
Thunbergia alata
31 Dec – 28 Jan
2 Jun
6-10 wk
11 Mar
14 Jul
7 wk after
California goldenpoppy
Eschscholzia californica
20 Jan
17 Jul
0 wk
13 Jan
7 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
19 Dec – 2 Jan
12 May
8-10 wk
27 Feb
7 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
25 Nov – 9 Dec
6 May
6-8 wk
20 Jan
17 Jun
0 wk
8 Jan
7 Jun
2 wk before