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