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Rel. frost
Last spring frost (0°C) 27 Mar Frost 3 of 4 years · 20 years of data
Frost-free season 228 days 27 Mar – 10 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)
10 – 24 Mar
21 Jun
5-7 wk
28 Apr
26 Jul
5 wk after
21 Mar
16 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
5 – 19 Mar
3 Jul
4-6 wk
16 Apr
31 Jul
3 wk after
21 Mar
21 Jul
1 wk before
Chili pepper
Capsicum annuum
10 Mar – 7 Apr
13 Apr
8-12 wk
2 Jun
8 Jun
10 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
7 – 21 Jan
16 Jun
5-7 wk
25 Feb
21 Jul
4 wk before
14 Mar
11 Jul
2 wk before
Garden cucumber
Cucumis sativus
5 – 12 May
23 Jun
3-4 wk
2 Jun
14 Jul
10 wk after
Florence Fennel
Foeniculum vulgare
28 Apr – 5 May
13 Jun
4-5 wk
2 Jun
11 Jul
10 wk after
7 May
1 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
13 – 20 May
6 Jun
3-4 wk
10 Jun
27 Jun
11 wk after
Onion
Allium cepa (Cepa-gruppen)
2 – 30 Jan
6 Apr
8-12 wk
27 Mar
1 Jun
Vid frost
9 Apr
22 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
21 Mar
21 Jun
1 wk before
21 Mar
11 Jun
1 wk before
Maize
Zea mays
24 Apr – 1 May
13 Jun
3-4 wk
22 May
4 Jul
8 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
31 Mar – 7 Apr
10 Jul
3-4 wk
28 Apr
31 Jul
5 wk after
9 Apr
21 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
14 Mar
1 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Jan
16 Jun
5-7 wk
25 Feb
21 Jul
4 wk before
14 Mar
11 Jul
2 wk before
Potato
Solanum tuberosum
18 Feb – 4 Mar
13 Jun
4-6 wk
1 Apr
11 Jul
1 wk after
1 Apr
1 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Jan
26 Jun
5-7 wk
25 Feb
31 Jul
4 wk before
21 Mar
21 Jul
1 wk before
Pumpkin
Cucurbita pepo
5 – 12 May
11 Jul
3-4 wk
2 Jun
1 Aug
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
31 Mar – 7 Apr
27 Jun
3-4 wk
28 Apr
18 Jul
5 wk after
9 Apr
8 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
5 – 19 Mar
28 Jun
4-6 wk
16 Apr
26 Jul
3 wk after
Lettuce
Lactuca sativa
18 – 25 Feb
15 Jul
3-4 wk
18 Mar
5 Aug
1 wk before
21 Mar
26 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
4 – 18 Feb
28 Jun
4-6 wk
18 Mar
26 Jul
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
14 – 28 Feb
7 Jun
2-4 wk
14 Mar
21 Jun
2 wk before
14 Mar
11 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
21 Mar
21 Jun
1 wk before
21 Mar
11 Jun
1 wk before
Spinach
Spinacia oleracea
7 – 14 Feb
30 Jul
3-4 wk
7 Mar
20 Aug
3 wk before
7 Mar
10 Aug
3 wk before
Sweet potato
Ipomoea batatas
28 Apr – 12 May
4-6 wk
9 Jun
11 wk after
Garden tomato
Solanum lycopersicum
27 Mar – 10 Apr
23 May
6-8 wk
22 May
4 Jul
8 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
24 Apr – 8 May
13 Jul
2-4 wk
22 May
27 Jul
8 wk after
7 May
17 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
5 – 19 Mar
28 Jun
4-6 wk
16 Apr
26 Jul
3 wk after
Garden pea
Pisum sativum
7 – 14 Feb
30 Jun
3-4 wk
7 Mar
21 Jul
3 wk before
21 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
21 Apr – 5 May
19 Jun
4-6 wk
2 Jun
17 Jul
10 wk after
Lemon balm
Melissa officinalis
16 – 30 Jan
26 May
8-10 wk
27 Mar
21 Jul
Vid frost
22 Apr
11 Jul
4 wk after
Dill
Anethum graveolens
21 Mar
31 Jul
1 wk before
Wild chives
Allium schoenoprasum
31 Dec – 14 Jan
9 Jun
6-8 wk
25 Feb
21 Jul
4 wk before
21 Mar
11 Jul
1 wk before
Spearmint
Mentha spicata
13 Dec – 10 Jan
26 May
8-12 wk
7 Mar
21 Jul
3 wk before
22 Apr
11 Jul
4 wk after
Coriander
Coriandrum sativum
9 Apr
10 Aug
2 wk after
Garden sage
Salvia officinalis
17 Feb – 3 Mar
11 May
8-10 wk
28 Apr
6 Jul
5 wk after
Common thyme
Thymus vulgaris
5 – 19 Feb
16 May
8-10 wk
16 Apr
11 Jul
3 wk after
Oregano
Origanum vulgare
8 – 22 Feb
30 May
6-8 wk
5 Apr
11 Jul
1 wk after
22 Apr
1 Jul
4 wk after
Parsley
Petroselinum crispum
10 – 24 Jan
30 May
6-8 wk
7 Mar
11 Jul
3 wk before
21 Mar
1 Jul
1 wk before
Rosemary
Salvia rosmarinus
20 Jan – 17 Feb
12 Apr
10-14 wk
28 Apr
21 Jun
5 wk after

Annual flowers

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