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Rel. frost
Last spring frost (0°C) 1 Feb Frost 9 of 10 years · 20 years of data
Frost-free season 292 days 1 Feb – 20 Nov
Probability that frost is over

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

Custom date

Vegetables

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

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
31 Jan – 14 Feb
3 Jun
4-6 wk
14 Mar
1 Jul
6 wk after
Lemon balm
Melissa officinalis
23 Nov – 7 Dec
26 May
8-10 wk
1 Feb
21 Jul
0 wk
27 Feb
11 Jul
4 wk after
Dill
Anethum graveolens
26 Jan
31 Jul
1 wk before
Wild chives
Allium schoenoprasum
Season too short
7 – 21 Dec
9 Jun
6-8 wk
1 Feb
21 Jul
0 wk
29 Dec
11 Jul
5 wk before
Spearmint
Mentha spicata
9 Nov – 7 Dec
26 May
8-12 wk
1 Feb
21 Jul
0 wk
27 Feb
11 Jul
4 wk after
Coriander
Coriandrum sativum
1 Feb
20 Aug
0 wk
14 Feb
10 Aug
2 wk after
Garden sage
Salvia officinalis
23 Nov – 7 Dec
11 May
8-10 wk
1 Feb
6 Jul
0 wk
Common thyme
Thymus vulgaris
23 Nov – 7 Dec
16 May
8-10 wk
1 Feb
11 Jul
0 wk
Oregano
Origanum vulgare
7 – 21 Dec
30 May
6-8 wk
1 Feb
11 Jul
0 wk
27 Feb
1 Jul
4 wk after
Parsley
Petroselinum crispum
7 – 21 Dec
30 May
6-8 wk
1 Feb
11 Jul
0 wk
26 Jan
1 Jul
1 wk before
Rosemary
Salvia rosmarinus
26 Oct – 23 Nov
12 Apr
10-14 wk
1 Feb
21 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
14 – 21 Feb
10 Jun
3-4 wk
14 Mar
1 Jul
6 wk after
Cornflower
Centaurea cyanus
1 Feb
21 Jul
0 wk
26 Jan
11 Jul
1 wk before
Statice
Limonium sinuatum
20 Dec – 3 Jan
14 May
8-10 wk
28 Feb
9 Jul
4 wk after
Sweet William
Dianthus barbatus
7 – 21 Dec
6-8 wk
1 Feb
0 wk
6 Feb
1 wk after
Snow-on-the-mountain
Euphorbia marginata
3 – 17 Jan
28 May
6-8 wk
28 Feb
9 Jul
4 wk after
16 Apr
29 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
29 Dec – 12 Jan
30 May
6-8 wk
23 Feb
11 Jul
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
2 – 30 Jan
13 Jun
4-8 wk
27 Feb
11 Jul
4 wk after
27 Feb
1 Jul
4 wk after
Foxglove
Digitalis purpurea
23 Nov – 7 Dec
8-10 wk
1 Feb
0 wk
14 Feb
2 wk after
Busy lizzie
Impatiens walleriana
20 Dec – 17 Jan
4 Jul
8-12 wk
14 Mar
29 Aug
6 wk after
Creeping zinnia
Sanvitalia procumbens
3 – 17 Jan
7 Jun
6-8 wk
28 Feb
19 Jul
4 wk after
Hyacinth bean
Dolichos lablab
18 Feb – 4 Mar
24 Apr
4-6 wk
1 Apr
22 May
8 wk after
Chinese lantern
Physalis alkekengi
23 Nov – 7 Dec
26 Apr
8-10 wk
1 Feb
21 Jun
0 wk
Love in a mist
Nigella damascena
1 Feb
6 Jul
0 wk
26 Jan
26 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
3 – 17 Jan
18 May
6-8 wk
28 Feb
29 Jun
4 wk after
16 Apr
19 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
9 Nov – 7 Dec
26 Apr
8-12 wk
1 Feb
21 Jun
0 wk
Cardoon
Cynara cardunculus
6 Dec – 3 Jan
27 Mar
8-12 wk
28 Feb
22 May
4 wk after
Regal-foxtail
Ptilotus nobilis
20 Dec – 17 Jan
26 Apr
8-12 wk
14 Mar
21 Jun
6 wk after
Globe amaranth
Gomphrena globosa
17 – 31 Jan
10 May
6-8 wk
14 Mar
21 Jun
6 wk after
Corn poppy
Papaver rhoeas
1 Feb
21 Jul
0 wk
26 Jan
11 Jul
1 wk before
Snapdragon
Antirrhinum majus
9 Nov – 7 Dec
16 May
8-12 wk
1 Feb
11 Jul
0 wk
6 Feb
1 Jul
1 wk after
Flossflower
Ageratum houstonianum
3 – 17 Jan
24 May
8-10 wk
14 Mar
19 Jul
6 wk after
Sweet pea
Lathyrus odoratus
7 – 28 Dec
6 Jun
5-8 wk
1 Feb
11 Jul
0 wk
Stock
Matthiola incana
7 – 21 Dec
9 Jun
6-8 wk
1 Feb
21 Jul
0 wk
14 Feb
11 Jul
2 wk after
Wormwood
Artemisia absinthium
7 – 21 Dec
10 May
6-8 wk
1 Feb
21 Jun
0 wk
14 Feb
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
31 Jan – 14 Feb
19 May
4-6 wk
14 Mar
16 Jun
6 wk after
Garden pansy
Viola × wittrockiana
23 Nov – 7 Dec
26 May
8-10 wk
1 Feb
21 Jul
0 wk
6 Feb
11 Jul
1 wk after
Petunia
Petunia
6 Dec – 3 Jan
14 May
8-12 wk
28 Feb
9 Jul
4 wk after
Sweet Scabious
Scabiosa atropurpurea
7 – 21 Dec
10 May
6-8 wk
1 Feb
21 Jun
0 wk
14 Mar
11 Jun
6 wk after
Common zinnia
Zinnia elegans
17 – 31 Jan
16 Jun
4-6 wk
28 Feb
14 Jul
4 wk after
Common morning glory
Ipomoea purpurea
7 – 21 Feb
10 Jun
3-5 wk
14 Mar
1 Jul
6 wk after
Garden cosmos
Cosmos bipinnatus
17 – 31 Jan
13 Jun
4-6 wk
28 Feb
11 Jul
4 wk after
14 Mar
1 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
7 Jan – 4 Feb
26 May
8-12 wk
1 Apr
21 Jul
8 wk after
Bee balm
Monarda didyma
9 Nov – 7 Dec
26 Apr
8-12 wk
1 Feb
21 Jun
0 wk
27 Feb
11 Jun
4 wk after
Yarrow
Achillea millefolium
7 – 21 Dec
10 Apr
6-8 wk
1 Feb
22 May
0 wk
14 Feb
12 May
2 wk after
Safflower
Carthamus tinctorius
1 Feb
21 Jun
0 wk
26 Jan
11 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
7 – 21 Dec
30 May
6-8 wk
1 Feb
11 Jul
0 wk
17 Dec
1 Jul
7 wk before
Bishop's flower
Ammi majus
21 Dec – 4 Jan
13 Jun
4-6 wk
1 Feb
11 Jul
0 wk
14 Feb
1 Jul
2 wk after
Drumsticks
Pycnosorus globosus
20 Dec – 3 Jan
5 Apr
10-12 wk
14 Mar
14 Jun
6 wk after
Sunflower
Helianthus annuus
31 Jan – 7 Feb
20 Jun
3-4 wk
28 Feb
11 Jul
4 wk after
27 Feb
1 Jul
4 wk after
China aster
Callistephus chinensis
3 – 17 Jan
9 Jun
6-8 wk
28 Feb
21 Jul
4 wk after
14 Mar
11 Jul
6 wk after
Annual phlox
Phlox drummondii
25 Dec – 8 Jan
7 Jun
6-8 wk
19 Feb
19 Jul
3 wk after
14 Mar
9 Jul
6 wk after
Hollyhock
Alcea rosea
7 – 21 Dec
6-8 wk
1 Feb
0 wk
14 Feb
2 wk after
Alpine delphinium
Delphinium elatum
9 Nov – 7 Dec
26 Apr
8-12 wk
1 Feb
21 Jun
0 wk
27 Feb
11 Jun
4 wk after
African marigold
Tagetes erecta
3 – 17 Jan
7 Jun
6-8 wk
28 Feb
19 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
7 – 21 Dec
30 May
6-8 wk
1 Feb
11 Jul
0 wk
14 Mar
1 Jul
6 wk after
Wood sage
Salvia nemorosa
23 Nov – 7 Dec
16 Apr
8-10 wk
1 Feb
11 Jun
0 wk
27 Feb
1 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
3 – 31 Jan
20 May
6-10 wk
14 Mar
1 Jul
6 wk after
California goldenpoppy
Eschscholzia californica
1 Feb
21 Jul
0 wk
26 Jan
11 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
20 Dec – 3 Jan
16 May
8-10 wk
28 Feb
11 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
7 – 21 Dec
10 May
6-8 wk
1 Feb
21 Jun
0 wk
19 Jan
11 Jun
2 wk before