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Rel. frost
Last spring frost (0°C) 13 Apr Frost 3 of 4 years · 20 years of data
Frost-free season 192 days 13 Apr – 22 Oct
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)
27 Mar – 10 Apr
22 Jun
5-7 wk
15 May
27 Jul
5 wk after
7 Apr
17 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
22 Mar – 5 Apr
4 Jul
4-6 wk
3 May
1 Aug
3 wk after
7 Apr
22 Jul
1 wk before
Chili pepper
Capsicum annuum
27 Mar – 24 Apr
15 Apr
8-12 wk
19 Jun
10 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
24 Jan – 7 Feb
17 Jun
5-7 wk
14 Mar
22 Jul
4 wk before
31 Mar
12 Jul
2 wk before
Garden cucumber
Cucumis sativus
22 – 29 May
17 Jun
3-4 wk
19 Jun
8 Jul
10 wk after
Florence Fennel
Foeniculum vulgare
15 – 22 May
14 Jun
4-5 wk
19 Jun
12 Jul
10 wk after
24 May
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
30 May – 6 Jun
31 May
3-4 wk
27 Jun
11 wk after
Onion
Allium cepa (Cepa-gruppen)
19 Jan – 16 Feb
7 Apr
8-12 wk
13 Apr
2 Jun
Vid frost
26 Apr
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
7 Apr
22 Jun
1 wk before
7 Apr
12 Jun
1 wk before
Maize
Zea mays
11 – 18 May
7 Jun
3-4 wk
8 Jun
28 Jun
8 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
17 – 24 Apr
11 Jul
3-4 wk
15 May
1 Aug
5 wk after
26 Apr
22 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
31 Mar
2 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
24 Jan – 7 Feb
17 Jun
5-7 wk
14 Mar
22 Jul
4 wk before
31 Mar
12 Jul
2 wk before
Potato
Solanum tuberosum
7 – 21 Mar
14 Jun
4-6 wk
18 Apr
12 Jul
1 wk after
18 Apr
2 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
24 Jan – 7 Feb
27 Jun
5-7 wk
14 Mar
1 Aug
4 wk before
7 Apr
22 Jul
1 wk before
Pumpkin
Cucurbita pepo
22 – 29 May
5 Jul
3-4 wk
19 Jun
26 Jul
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
17 – 24 Apr
29 Jun
3-4 wk
15 May
20 Jul
5 wk after
26 Apr
10 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
22 Mar – 5 Apr
29 Jun
4-6 wk
3 May
27 Jul
3 wk after
Lettuce
Lactuca sativa
7 – 14 Mar
16 Jul
3-4 wk
4 Apr
6 Aug
1 wk before
7 Apr
27 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
21 Feb – 7 Mar
29 Jun
4-6 wk
4 Apr
27 Jul
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
3 – 17 Mar
8 Jun
2-4 wk
31 Mar
22 Jun
2 wk before
31 Mar
12 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
7 Apr
22 Jun
1 wk before
7 Apr
12 Jun
1 wk before
Spinach
Spinacia oleracea
24 Feb – 3 Mar
31 Jul
3-4 wk
24 Mar
21 Aug
3 wk before
24 Mar
11 Aug
3 wk before
Sweet potato
Ipomoea batatas
15 – 29 May
4-6 wk
26 Jun
11 wk after
Garden tomato
Solanum lycopersicum
13 – 27 Apr
17 May
6-8 wk
8 Jun
28 Jun
8 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
11 – 25 May
7 Jul
2-4 wk
8 Jun
21 Jul
8 wk after
24 May
11 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
22 Mar – 5 Apr
29 Jun
4-6 wk
3 May
27 Jul
3 wk after
Garden pea
Pisum sativum
24 Feb – 3 Mar
1 Jul
3-4 wk
24 Mar
22 Jul
3 wk before
7 Apr
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
8 – 22 May
13 Jun
4-6 wk
19 Jun
11 Jul
10 wk after
Lemon balm
Melissa officinalis
2 – 16 Feb
27 May
8-10 wk
13 Apr
22 Jul
Vid frost
9 May
12 Jul
4 wk after
Dill
Anethum graveolens
7 Apr
1 Aug
1 wk before
Wild chives
Allium schoenoprasum
17 – 31 Jan
10 Jun
6-8 wk
14 Mar
22 Jul
4 wk before
7 Apr
12 Jul
1 wk before
Spearmint
Mentha spicata
30 Dec – 27 Jan
27 May
8-12 wk
24 Mar
22 Jul
3 wk before
9 May
12 Jul
4 wk after
Coriander
Coriandrum sativum
26 Apr
11 Aug
2 wk after
Garden sage
Salvia officinalis
6 – 20 Mar
12 May
8-10 wk
15 May
7 Jul
5 wk after
Common thyme
Thymus vulgaris
22 Feb – 8 Mar
17 May
8-10 wk
3 May
12 Jul
3 wk after
Oregano
Origanum vulgare
25 Feb – 11 Mar
31 May
6-8 wk
22 Apr
12 Jul
1 wk after
9 May
2 Jul
4 wk after
Parsley
Petroselinum crispum
27 Jan – 10 Feb
31 May
6-8 wk
24 Mar
12 Jul
3 wk before
7 Apr
2 Jul
1 wk before
Rosemary
Salvia rosmarinus
6 Feb – 6 Mar
13 Apr
10-14 wk
15 May
22 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
22 – 29 May
20 Jun
3-4 wk
19 Jun
11 Jul
10 wk after
Cornflower
Centaurea cyanus
24 Mar
22 Jul
3 wk before
7 Apr
12 Jul
1 wk before
Statice
Limonium sinuatum
30 Mar – 13 Apr
16 May
8-10 wk
8 Jun
11 Jul
8 wk after
Sweet William
Dianthus barbatus
27 Jan – 10 Feb
6-8 wk
24 Mar
3 wk before
18 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
13 – 27 Apr
30 May
6-8 wk
8 Jun
11 Jul
8 wk after
26 Jun
1 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
6 – 20 Apr
31 May
6-8 wk
1 Jun
12 Jul
7 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
14 Mar – 11 Apr
14 Jun
4-8 wk
9 May
12 Jul
4 wk after
9 May
2 Jul
4 wk after
Foxglove
Digitalis purpurea
13 – 27 Jan
8-10 wk
24 Mar
3 wk before
26 Apr
2 wk after
Busy lizzie
Impatiens walleriana
27 Mar – 24 Apr
7 Jul
8-12 wk
19 Jun
1 Sep
10 wk after
Creeping zinnia
Sanvitalia procumbens
13 – 27 Apr
9 Jun
6-8 wk
8 Jun
21 Jul
8 wk after
Hyacinth bean
Dolichos lablab
Fleece
8 – 22 May
14 May
4-6 wk
19 Jun
10 wk after
Chinese lantern
Physalis alkekengi
6 – 20 Mar
27 Apr
8-10 wk
15 May
22 Jun
5 wk after
Love in a mist
Nigella damascena
7 Apr
27 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
13 – 27 Apr
20 May
6-8 wk
8 Jun
1 Jul
8 wk after
26 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
20 Feb – 20 Mar
27 Apr
8-12 wk
15 May
22 Jun
5 wk after
Cardoon
Cynara cardunculus
16 Mar – 13 Apr
28 Mar
8-12 wk
8 Jun
8 wk after
Regal-foxtail
Ptilotus nobilis
27 Mar – 24 Apr
6 May
8-12 wk
19 Jun
1 Jul
10 wk after
Globe amaranth
Gomphrena globosa
24 Apr – 8 May
20 May
6-8 wk
19 Jun
1 Jul
10 wk after
Corn poppy
Papaver rhoeas
7 Apr
12 Jul
1 wk before
Snapdragon
Antirrhinum majus
10 Jan – 7 Feb
17 May
8-12 wk
4 Apr
12 Jul
1 wk before
18 Apr
2 Jul
1 wk after
Flossflower
Ageratum houstonianum
10 – 24 Apr
26 May
8-10 wk
19 Jun
21 Jul
10 wk after
Sweet pea
Lathyrus odoratus
27 Jan – 17 Feb
7 Jun
5-8 wk
24 Mar
12 Jul
3 wk before
Stock
Matthiola incana
7 – 21 Feb
10 Jun
6-8 wk
4 Apr
22 Jul
1 wk before
26 Apr
12 Jul
2 wk after
Wormwood
Artemisia absinthium
27 Jan – 10 Feb
11 May
6-8 wk
24 Mar
22 Jun
3 wk before
26 Apr
12 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
8 – 22 May
29 May
4-6 wk
19 Jun
26 Jun
10 wk after
Garden pansy
Viola × wittrockiana
3 – 17 Jan
27 May
8-10 wk
14 Mar
22 Jul
4 wk before
18 Apr
12 Jul
1 wk after
Petunia
Petunia
16 Mar – 13 Apr
16 May
8-12 wk
8 Jun
11 Jul
8 wk after
Sweet Scabious
Scabiosa atropurpurea
20 Mar – 3 Apr
11 May
6-8 wk
15 May
22 Jun
5 wk after
24 May
12 Jun
6 wk after
Common zinnia
Zinnia elegans
27 Apr – 11 May
19 Jun
4-6 wk
8 Jun
17 Jul
8 wk after
Common morning glory
Ipomoea purpurea
15 – 29 May
20 Jun
3-5 wk
19 Jun
11 Jul
10 wk after
Garden cosmos
Cosmos bipinnatus
27 Apr – 11 May
14 Jun
4-6 wk
8 Jun
12 Jul
8 wk after
24 May
2 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
3 Apr – 1 May
5 Jun
8-12 wk
26 Jun
31 Jul
11 wk after
Bee balm
Monarda didyma
19 Jan – 16 Feb
27 Apr
8-12 wk
13 Apr
22 Jun
Vid frost
9 May
12 Jun
4 wk after
Yarrow
Achillea millefolium
27 Jan – 10 Feb
11 Apr
6-8 wk
24 Mar
23 May
3 wk before
26 Apr
13 May
2 wk after
Safflower
Carthamus tinctorius
24 Mar
22 Jun
3 wk before
7 Apr
12 Jun
1 wk before
Iceland poppy
Papaver nudicaule
17 – 31 Jan
31 May
6-8 wk
14 Mar
12 Jul
4 wk before
31 Mar
2 Jul
2 wk before
Bishop's flower
Ammi majus
17 – 31 Mar
14 Jun
4-6 wk
28 Apr
12 Jul
2 wk after
26 Apr
2 Jul
2 wk after
Drumsticks
Pycnosorus globosus
27 Mar – 10 Apr
8 Apr
10-12 wk
19 Jun
10 wk after
Sunflower
Helianthus annuus
11 – 18 May
21 Jun
3-4 wk
8 Jun
12 Jul
8 wk after
9 May
2 Jul
4 wk after
China aster
Callistephus chinensis
13 – 27 Apr
10 Jun
6-8 wk
8 Jun
22 Jul
8 wk after
24 May
12 Jul
6 wk after
Annual phlox
Phlox drummondii
29 Mar – 12 Apr
9 Jun
6-8 wk
24 May
21 Jul
6 wk after
24 May
11 Jul
6 wk after
Hollyhock
Alcea rosea
27 Jan – 10 Feb
6-8 wk
24 Mar
3 wk before
26 Apr
2 wk after
Alpine delphinium
Delphinium elatum
8 Feb – 8 Mar
27 Apr
8-12 wk
3 May
22 Jun
3 wk after
9 May
12 Jun
4 wk after
African marigold
Tagetes erecta
13 – 27 Apr
9 Jun
6-8 wk
8 Jun
21 Jul
8 wk after
Black-eyed Susan
Rudbeckia hirta
20 Mar – 3 Apr
31 May
6-8 wk
15 May
12 Jul
5 wk after
24 May
2 Jul
6 wk after
Wood sage
Salvia nemorosa
11 – 25 Feb
17 Apr
8-10 wk
22 Apr
12 Jun
1 wk after
9 May
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
10 Apr – 8 May
30 May
6-10 wk
19 Jun
11 Jul
10 wk after
California goldenpoppy
Eschscholzia californica
7 Apr
12 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
30 Mar – 13 Apr
17 May
8-10 wk
8 Jun
12 Jul
8 wk after
Water forget-me-not
Myosotis scorpioides
27 Jan – 10 Feb
11 May
6-8 wk
24 Mar
22 Jun
3 wk before
26 Apr
12 Jun
2 wk after