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Rel. frost
Last spring frost (0°C) 7 Mar Frost 3 of 4 years · 20 years of data
Frost-free season 260 days 7 Mar – 22 Nov
Probability that frost is over

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