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Rel. frost
Last spring frost (0°C) 7 Mar Frost 9 of 10 years · 20 years of data
Frost-free season 239 days 7 Mar – 1 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)
17 – 31 Jan
20 Jun
5-7 wk
7 Mar
25 Jul
0 wk
1 Mar
15 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
24 Jan – 7 Feb
2 Jul
4-6 wk
7 Mar
30 Jul
0 wk
1 Mar
20 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
6 Jan – 3 Feb
10 Apr
8-12 wk
31 Mar
5 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
17 – 31 Jan
15 Jun
5-7 wk
7 Mar
20 Jul
0 wk
22 Feb
10 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
17 – 24 Mar
4 Jun
3-4 wk
14 Apr
25 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
22 – 29 Mar
12 Jun
4-5 wk
26 Apr
10 Jul
7 wk after
17 Apr
30 Jun
6 wk after
Butter bean
Phaseolus lunatus
Greenhouse
8 – 15 Apr
16 May
3-4 wk
6 May
6 Jun
9 wk after
Onion
Allium cepa (Cepa-gruppen)
13 Dec – 10 Jan
5 Apr
8-12 wk
7 Mar
31 May
0 wk
20 Mar
21 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
1 Mar
20 Jun
1 wk before
1 Mar
10 Jun
1 wk before
Maize
Zea mays
Fleece
3 – 10 Mar
25 May
3-4 wk
31 Mar
15 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
9 – 16 Feb
9 Jul
3-4 wk
9 Mar
30 Jul
0 wk
20 Mar
20 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
7 Mar
10 Jul
0 wk
22 Feb
30 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
17 – 31 Jan
15 Jun
5-7 wk
7 Mar
20 Jul
0 wk
22 Feb
10 Jul
2 wk before
Potato
Solanum tuberosum
29 Jan – 12 Feb
9 Jun
4-6 wk
12 Mar
7 Jul
1 wk after
12 Mar
27 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
17 – 31 Jan
25 Jun
5-7 wk
7 Mar
30 Jul
0 wk
1 Mar
20 Jul
1 wk before
Pumpkin
Cucurbita pepo
29 Mar – 5 Apr
9 Jun
3-4 wk
26 Apr
30 Jun
7 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
9 – 16 Feb
20 Jun
3-4 wk
9 Mar
11 Jul
0 wk
20 Mar
1 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
24 Jan – 7 Feb
27 Jun
4-6 wk
7 Mar
25 Jul
0 wk
Lettuce
Lactuca sativa
7 – 14 Feb
14 Jul
3-4 wk
7 Mar
4 Aug
0 wk
1 Mar
25 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
24 Jan – 7 Feb
27 Jun
4-6 wk
7 Mar
25 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
25 Jan – 8 Feb
6 Jun
2-4 wk
22 Feb
20 Jun
2 wk before
22 Feb
10 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
1 Mar
20 Jun
1 wk before
1 Mar
10 Jun
1 wk before
Spinach
Spinacia oleracea
7 – 14 Feb
29 Jul
3-4 wk
7 Mar
19 Aug
0 wk
15 Feb
9 Aug
3 wk before
Sweet potato
Ipomoea batatas
8 – 22 Apr
4-6 wk
20 May
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
3 – 17 Feb
4 May
6-8 wk
31 Mar
15 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
17 – 31 Mar
11 Jun
2-4 wk
14 Apr
25 Jun
5 wk after
17 Apr
15 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
24 Jan – 7 Feb
27 Jun
4-6 wk
7 Mar
25 Jul
0 wk
Garden pea
Pisum sativum
7 – 14 Feb
29 Jun
3-4 wk
7 Mar
20 Jul
0 wk
1 Mar
10 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
15 – 29 Mar
18 May
4-6 wk
26 Apr
15 Jun
7 wk after
Lemon balm
Melissa officinalis
27 Dec – 10 Jan
25 May
8-10 wk
7 Mar
20 Jul
0 wk
2 Apr
10 Jul
4 wk after
Dill
Anethum graveolens
1 Mar
30 Jul
1 wk before
Wild chives
Allium schoenoprasum
Season too short
10 – 24 Jan
8 Jun
6-8 wk
7 Mar
20 Jul
0 wk
1 Feb
10 Jul
5 wk before
Spearmint
Mentha spicata
13 Dec – 10 Jan
25 May
8-12 wk
7 Mar
20 Jul
0 wk
2 Apr
10 Jul
4 wk after
Coriander
Coriandrum sativum
7 Mar
19 Aug
0 wk
20 Mar
9 Aug
2 wk after
Garden sage
Salvia officinalis
29 Dec – 12 Jan
10 May
8-10 wk
9 Mar
5 Jul
0 wk
Common thyme
Thymus vulgaris
27 Dec – 10 Jan
15 May
8-10 wk
7 Mar
10 Jul
0 wk
Oregano
Origanum vulgare
10 – 24 Jan
29 May
6-8 wk
7 Mar
10 Jul
0 wk
2 Apr
30 Jun
4 wk after
Parsley
Petroselinum crispum
10 – 24 Jan
29 May
6-8 wk
7 Mar
10 Jul
0 wk
1 Mar
30 Jun
1 wk before
Rosemary
Salvia rosmarinus
1 – 29 Dec
11 Apr
10-14 wk
9 Mar
20 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
29 Mar – 5 Apr
25 May
3-4 wk
26 Apr
15 Jun
7 wk after
Cornflower
Centaurea cyanus
7 Mar
20 Jul
0 wk
1 Mar
10 Jul
1 wk before
Statice
Limonium sinuatum
3 – 17 Feb
4 May
8-10 wk
14 Apr
29 Jun
5 wk after
Sweet William
Dianthus barbatus
10 – 24 Jan
6-8 wk
7 Mar
0 wk
12 Mar
1 wk after
Snow-on-the-mountain
Euphorbia marginata
17 Feb – 3 Mar
18 May
6-8 wk
14 Apr
29 Jun
5 wk after
20 May
19 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
10 – 24 Feb
24 May
6-8 wk
7 Apr
5 Jul
4 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
5 Feb – 5 Mar
7 Jun
4-8 wk
2 Apr
5 Jul
4 wk after
2 Apr
25 Jun
4 wk after
Foxglove
Digitalis purpurea
27 Dec – 10 Jan
8-10 wk
7 Mar
0 wk
20 Mar
2 wk after
Busy lizzie
Impatiens walleriana
1 Feb – 1 Mar
16 Jun
8-12 wk
26 Apr
11 Aug
7 wk after
Creeping zinnia
Sanvitalia procumbens
17 Feb – 3 Mar
28 May
6-8 wk
14 Apr
9 Jul
5 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
3 – 17 Mar
29 Apr
4-6 wk
14 Apr
27 May
5 wk after
Chinese lantern
Physalis alkekengi
29 Dec – 12 Jan
25 Apr
8-10 wk
9 Mar
20 Jun
0 wk
Love in a mist
Nigella damascena
7 Mar
5 Jul
0 wk
1 Mar
25 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
17 Feb – 3 Mar
8 May
6-8 wk
14 Apr
19 Jun
5 wk after
20 May
9 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
15 Dec – 12 Jan
25 Apr
8-12 wk
9 Mar
20 Jun
0 wk
Cardoon
Cynara cardunculus
20 Jan – 17 Feb
26 Mar
8-12 wk
14 Apr
21 May
5 wk after
Regal-foxtail
Ptilotus nobilis
1 Feb – 1 Mar
10 Apr
8-12 wk
26 Apr
5 Jun
7 wk after
Globe amaranth
Gomphrena globosa
1 – 15 Mar
24 Apr
6-8 wk
26 Apr
5 Jun
7 wk after
Corn poppy
Papaver rhoeas
7 Mar
20 Jul
0 wk
1 Mar
10 Jul
1 wk before
Snapdragon
Antirrhinum majus
13 Dec – 10 Jan
15 May
8-12 wk
7 Mar
10 Jul
0 wk
12 Mar
30 Jun
1 wk after
Flossflower
Ageratum houstonianum
15 Feb – 1 Mar
14 May
8-10 wk
26 Apr
9 Jul
7 wk after
Sweet pea
Lathyrus odoratus
10 – 31 Jan
5 Jun
5-8 wk
7 Mar
10 Jul
0 wk
Stock
Matthiola incana
10 – 24 Jan
8 Jun
6-8 wk
7 Mar
20 Jul
0 wk
20 Mar
10 Jul
2 wk after
Wormwood
Artemisia absinthium
10 – 24 Jan
9 May
6-8 wk
7 Mar
20 Jun
0 wk
20 Mar
10 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
15 – 29 Mar
3 May
4-6 wk
26 Apr
31 May
7 wk after
Garden pansy
Viola × wittrockiana
27 Dec – 10 Jan
25 May
8-10 wk
7 Mar
20 Jul
0 wk
12 Mar
10 Jul
1 wk after
Petunia
Petunia
20 Jan – 17 Feb
4 May
8-12 wk
14 Apr
29 Jun
5 wk after
Sweet Scabious
Scabiosa atropurpurea
12 – 26 Jan
9 May
6-8 wk
9 Mar
20 Jun
0 wk
17 Apr
10 Jun
6 wk after
Common zinnia
Zinnia elegans
3 – 17 Mar
29 May
4-6 wk
14 Apr
26 Jun
5 wk after
Common morning glory
Ipomoea purpurea
22 Mar – 5 Apr
25 May
3-5 wk
26 Apr
15 Jun
7 wk after
Garden cosmos
Cosmos bipinnatus
3 – 17 Mar
7 Jun
4-6 wk
14 Apr
5 Jul
5 wk after
17 Apr
25 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
21 Feb – 21 Mar
10 May
8-12 wk
16 May
5 Jul
10 wk after
Bee balm
Monarda didyma
13 Dec – 10 Jan
25 Apr
8-12 wk
7 Mar
20 Jun
0 wk
2 Apr
10 Jun
4 wk after
Yarrow
Achillea millefolium
10 – 24 Jan
9 Apr
6-8 wk
7 Mar
21 May
0 wk
20 Mar
11 May
2 wk after
Safflower
Carthamus tinctorius
7 Mar
20 Jun
0 wk
1 Mar
10 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
10 – 24 Jan
29 May
6-8 wk
7 Mar
10 Jul
0 wk
20 Jan
30 Jun
7 wk before
Bishop's flower
Ammi majus
24 Jan – 7 Feb
12 Jun
4-6 wk
7 Mar
10 Jul
0 wk
20 Mar
30 Jun
2 wk after
Drumsticks
Pycnosorus globosus
1 – 15 Feb
18 Mar
10-12 wk
26 Apr
27 May
7 wk after
Sunflower
Helianthus annuus
17 – 24 Mar
19 Jun
3-4 wk
14 Apr
10 Jul
5 wk after
2 Apr
30 Jun
4 wk after
China aster
Callistephus chinensis
17 Feb – 3 Mar
8 Jun
6-8 wk
14 Apr
20 Jul
5 wk after
17 Apr
10 Jul
6 wk after
Annual phlox
Phlox drummondii
3 – 17 Feb
28 May
6-8 wk
31 Mar
9 Jul
3 wk after
17 Apr
29 Jun
6 wk after
Hollyhock
Alcea rosea
10 – 24 Jan
6-8 wk
7 Mar
0 wk
20 Mar
2 wk after
Alpine delphinium
Delphinium elatum
13 Dec – 10 Jan
25 Apr
8-12 wk
7 Mar
20 Jun
0 wk
2 Apr
10 Jun
4 wk after
African marigold
Tagetes erecta
17 Feb – 3 Mar
28 May
6-8 wk
14 Apr
9 Jul
5 wk after
Black-eyed Susan
Rudbeckia hirta
12 – 26 Jan
29 May
6-8 wk
9 Mar
10 Jul
0 wk
17 Apr
30 Jun
6 wk after
Wood sage
Salvia nemorosa
27 Dec – 10 Jan
15 Apr
8-10 wk
7 Mar
10 Jun
0 wk
2 Apr
31 May
4 wk after
Black-eyed susan vine
Thunbergia alata
15 Feb – 15 Mar
4 May
6-10 wk
26 Apr
15 Jun
7 wk after
California goldenpoppy
Eschscholzia californica
7 Mar
20 Jul
0 wk
1 Mar
10 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
3 – 17 Feb
15 May
8-10 wk
14 Apr
10 Jul
5 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
10 – 24 Jan
9 May
6-8 wk
7 Mar
20 Jun
0 wk
22 Feb
10 Jun
2 wk before