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Rel. frost
Last spring frost (0°C) 8 Apr Frost 1 of 4 years · 20 years of data
Frost-free season 235 days 8 Apr – 29 Nov
Probability that frost is over

75% = 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)
18 Feb – 4 Mar
19 Jun
5-7 wk
8 Apr
24 Jul
0 wk
2 Apr
14 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
25 Feb – 11 Mar
1 Jul
4-6 wk
8 Apr
29 Jul
0 wk
2 Apr
19 Jul
1 wk before
Chili pepper
Capsicum annuum
24 Feb – 24 Mar
26 Apr
8-12 wk
19 May
21 Jun
6 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
18 Feb – 4 Mar
14 Jun
5-7 wk
8 Apr
19 Jul
0 wk
26 Mar
9 Jul
2 wk before
Garden cucumber
Cucumis sativus
21 – 28 Apr
3 Jul
3-4 wk
19 May
24 Jul
6 wk after
Florence Fennel
Foeniculum vulgare
14 – 21 Apr
11 Jun
4-5 wk
19 May
9 Jul
6 wk after
19 May
29 Jun
6 wk after
Butter bean
Phaseolus lunatus
14 – 21 Jun
3-4 wk
12 Jul
14 wk after
Onion
Allium cepa (Cepa-gruppen)
14 Jan – 11 Feb
4 Apr
8-12 wk
8 Apr
30 May
0 wk
21 Apr
20 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
2 Apr
19 Jun
1 wk before
2 Apr
9 Jun
1 wk before
Maize
Zea mays
7 – 14 Apr
23 Jun
3-4 wk
5 May
14 Jul
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
11 – 18 Mar
8 Jul
3-4 wk
8 Apr
29 Jul
0 wk
21 Apr
19 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
8 Apr
9 Jul
0 wk
26 Mar
29 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
18 Feb – 4 Mar
14 Jun
5-7 wk
8 Apr
19 Jul
0 wk
26 Mar
9 Jul
2 wk before
Potato
Solanum tuberosum
2 – 16 Mar
11 Jun
4-6 wk
13 Apr
9 Jul
1 wk after
13 Apr
29 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
18 Feb – 4 Mar
24 Jun
5-7 wk
8 Apr
29 Jul
0 wk
2 Apr
19 Jul
1 wk before
Pumpkin
Cucurbita pepo
21 – 28 Apr
13 Jul
3-4 wk
19 May
3 Aug
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
11 – 18 Mar
5 Jul
3-4 wk
8 Apr
26 Jul
0 wk
21 Apr
16 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
25 Feb – 11 Mar
26 Jun
4-6 wk
8 Apr
24 Jul
0 wk
Lettuce
Lactuca sativa
11 – 18 Mar
13 Jul
3-4 wk
8 Apr
3 Aug
0 wk
2 Apr
24 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
25 Feb – 11 Mar
26 Jun
4-6 wk
8 Apr
24 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Feb – 12 Mar
5 Jun
2-4 wk
26 Mar
19 Jun
2 wk before
26 Mar
9 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
2 Apr
19 Jun
1 wk before
2 Apr
9 Jun
1 wk before
Spinach
Spinacia oleracea
11 – 18 Mar
28 Jul
3-4 wk
8 Apr
18 Aug
0 wk
19 Mar
8 Aug
3 wk before
Sweet potato
Ipomoea batatas
10 – 24 May
4-6 wk
21 Jun
11 wk after
Garden tomato
Solanum lycopersicum
10 – 24 Mar
2 Jun
6-8 wk
5 May
14 Jul
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
7 – 21 Apr
15 Jul
2-4 wk
5 May
29 Jul
4 wk after
19 May
19 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
25 Feb – 11 Mar
26 Jun
4-6 wk
8 Apr
24 Jul
0 wk
Garden pea
Pisum sativum
11 – 18 Mar
28 Jun
3-4 wk
8 Apr
19 Jul
0 wk
2 Apr
9 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
7 – 21 Apr
21 Jun
4-6 wk
19 May
19 Jul
6 wk after
Lemon balm
Melissa officinalis
28 Jan – 11 Feb
24 May
8-10 wk
8 Apr
19 Jul
0 wk
4 May
9 Jul
4 wk after
Dill
Anethum graveolens
2 Apr
29 Jul
1 wk before
Wild chives
Allium schoenoprasum
Season too short
11 – 25 Feb
7 Jun
6-8 wk
8 Apr
19 Jul
0 wk
5 Mar
9 Jul
5 wk before
Spearmint
Mentha spicata
14 Jan – 11 Feb
24 May
8-12 wk
8 Apr
19 Jul
0 wk
4 May
9 Jul
4 wk after
Coriander
Coriandrum sativum
8 Apr
18 Aug
0 wk
21 Apr
8 Aug
2 wk after
Garden sage
Salvia officinalis
28 Jan – 11 Feb
9 May
8-10 wk
8 Apr
4 Jul
0 wk
Common thyme
Thymus vulgaris
28 Jan – 11 Feb
14 May
8-10 wk
8 Apr
9 Jul
0 wk
Oregano
Origanum vulgare
11 – 25 Feb
28 May
6-8 wk
8 Apr
9 Jul
0 wk
4 May
29 Jun
4 wk after
Parsley
Petroselinum crispum
11 – 25 Feb
28 May
6-8 wk
8 Apr
9 Jul
0 wk
2 Apr
29 Jun
1 wk before
Rosemary
Salvia rosmarinus
31 Dec – 28 Jan
10 Apr
10-14 wk
8 Apr
19 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
21 – 28 Apr
28 Jun
3-4 wk
19 May
19 Jul
6 wk after
Cornflower
Centaurea cyanus
8 Apr
19 Jul
0 wk
2 Apr
9 Jul
1 wk before
Statice
Limonium sinuatum
24 Feb – 10 Mar
14 May
8-10 wk
5 May
9 Jul
4 wk after
Sweet William
Dianthus barbatus
11 – 25 Feb
6-8 wk
8 Apr
0 wk
13 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
10 – 24 Mar
28 May
6-8 wk
5 May
9 Jul
4 wk after
21 Jun
29 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
5 – 19 Mar
28 May
6-8 wk
30 Apr
9 Jul
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
9 Mar – 6 Apr
11 Jun
4-8 wk
4 May
9 Jul
4 wk after
4 May
29 Jun
4 wk after
Foxglove
Digitalis purpurea
28 Jan – 11 Feb
8-10 wk
8 Apr
0 wk
21 Apr
2 wk after
Busy lizzie
Impatiens walleriana
24 Feb – 24 Mar
9 Jul
8-12 wk
19 May
3 Sep
6 wk after
Creeping zinnia
Sanvitalia procumbens
10 – 24 Mar
7 Jun
6-8 wk
5 May
19 Jul
4 wk after
Hyacinth bean
Dolichos lablab
25 Apr – 9 May
17 May
4-6 wk
6 Jun
14 Jun
8 wk after
Chinese lantern
Physalis alkekengi
28 Jan – 11 Feb
24 Apr
8-10 wk
8 Apr
19 Jun
0 wk
Love in a mist
Nigella damascena
8 Apr
4 Jul
0 wk
2 Apr
24 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
10 – 24 Mar
18 May
6-8 wk
5 May
29 Jun
4 wk after
21 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
14 Jan – 11 Feb
24 Apr
8-12 wk
8 Apr
19 Jun
0 wk
Cardoon
Cynara cardunculus
10 Feb – 10 Mar
25 Mar
8-12 wk
5 May
20 May
4 wk after
Regal-foxtail
Ptilotus nobilis
24 Feb – 24 Mar
14 May
8-12 wk
19 May
9 Jul
6 wk after
Globe amaranth
Gomphrena globosa
24 Mar – 7 Apr
28 May
6-8 wk
19 May
9 Jul
6 wk after
Corn poppy
Papaver rhoeas
8 Apr
19 Jul
0 wk
2 Apr
9 Jul
1 wk before
Snapdragon
Antirrhinum majus
14 Jan – 11 Feb
14 May
8-12 wk
8 Apr
9 Jul
0 wk
13 Apr
29 Jun
1 wk after
Flossflower
Ageratum houstonianum
10 – 24 Mar
24 May
8-10 wk
19 May
19 Jul
6 wk after
Sweet pea
Lathyrus odoratus
11 Feb – 4 Mar
4 Jun
5-8 wk
8 Apr
9 Jul
0 wk
Stock
Matthiola incana
11 – 25 Feb
7 Jun
6-8 wk
8 Apr
19 Jul
0 wk
21 Apr
9 Jul
2 wk after
Wormwood
Artemisia absinthium
11 – 25 Feb
8 May
6-8 wk
8 Apr
19 Jun
0 wk
21 Apr
9 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
7 – 21 Apr
6 Jun
4-6 wk
19 May
4 Jul
6 wk after
Garden pansy
Viola × wittrockiana
28 Jan – 11 Feb
24 May
8-10 wk
8 Apr
19 Jul
0 wk
13 Apr
9 Jul
1 wk after
Petunia
Petunia
10 Feb – 10 Mar
14 May
8-12 wk
5 May
9 Jul
4 wk after
Sweet Scabious
Scabiosa atropurpurea
11 – 25 Feb
8 May
6-8 wk
8 Apr
19 Jun
0 wk
19 May
9 Jun
6 wk after
Common zinnia
Zinnia elegans
24 Mar – 7 Apr
21 Jun
4-6 wk
5 May
19 Jul
4 wk after
Common morning glory
Ipomoea purpurea
14 – 28 Apr
28 Jun
3-5 wk
19 May
19 Jul
6 wk after
Garden cosmos
Cosmos bipinnatus
24 Mar – 7 Apr
11 Jun
4-6 wk
5 May
9 Jul
4 wk after
19 May
29 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
14 Mar – 11 Apr
13 Jun
8-12 wk
6 Jun
8 Aug
8 wk after
Bee balm
Monarda didyma
14 Jan – 11 Feb
24 Apr
8-12 wk
8 Apr
19 Jun
0 wk
4 May
9 Jun
4 wk after
Yarrow
Achillea millefolium
11 – 25 Feb
8 Apr
6-8 wk
8 Apr
20 May
0 wk
21 Apr
10 May
2 wk after
Safflower
Carthamus tinctorius
8 Apr
19 Jun
0 wk
2 Apr
9 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
11 – 25 Feb
28 May
6-8 wk
8 Apr
9 Jul
0 wk
21 Feb
29 Jun
7 wk before
Bishop's flower
Ammi majus
25 Feb – 11 Mar
11 Jun
4-6 wk
8 Apr
9 Jul
0 wk
21 Apr
29 Jun
2 wk after
Drumsticks
Pycnosorus globosus
24 Feb – 10 Mar
10 Apr
10-12 wk
19 May
19 Jun
6 wk after
Sunflower
Helianthus annuus
7 – 14 Apr
18 Jun
3-4 wk
5 May
9 Jul
4 wk after
4 May
29 Jun
4 wk after
China aster
Callistephus chinensis
10 – 24 Mar
7 Jun
6-8 wk
5 May
19 Jul
4 wk after
19 May
9 Jul
6 wk after
Annual phlox
Phlox drummondii
1 – 15 Mar
7 Jun
6-8 wk
26 Apr
19 Jul
3 wk after
19 May
9 Jul
6 wk after
Hollyhock
Alcea rosea
11 – 25 Feb
6-8 wk
8 Apr
0 wk
21 Apr
2 wk after
Alpine delphinium
Delphinium elatum
14 Jan – 11 Feb
24 Apr
8-12 wk
8 Apr
19 Jun
0 wk
4 May
9 Jun
4 wk after
African marigold
Tagetes erecta
10 – 24 Mar
7 Jun
6-8 wk
5 May
19 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
11 – 25 Feb
28 May
6-8 wk
8 Apr
9 Jul
0 wk
19 May
29 Jun
6 wk after
Wood sage
Salvia nemorosa
28 Jan – 11 Feb
14 Apr
8-10 wk
8 Apr
9 Jun
0 wk
4 May
30 May
4 wk after
Black-eyed susan vine
Thunbergia alata
10 Mar – 7 Apr
7 Jun
6-10 wk
19 May
19 Jul
6 wk after
California goldenpoppy
Eschscholzia californica
8 Apr
19 Jul
0 wk
2 Apr
9 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
24 Feb – 10 Mar
14 May
8-10 wk
5 May
9 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
11 – 25 Feb
8 May
6-8 wk
8 Apr
19 Jun
0 wk
26 Mar
9 Jun
2 wk before