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Rel. frost
Last spring frost (0°C) 25 Apr Frost 1 of 4 years · 20 years of data
Frost-free season 209 days 25 Apr – 20 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)
8 – 22 Apr
19 Jun
5-7 wk
27 May
24 Jul
5 wk after
19 Apr
14 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
3 – 17 Apr
1 Jul
4-6 wk
15 May
29 Jul
3 wk after
19 Apr
19 Jul
1 wk before
Chili pepper
Capsicum annuum
8 Apr – 6 May
19 Apr
8-12 wk
1 Jul
10 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Feb
14 Jun
5-7 wk
26 Mar
19 Jul
4 wk before
12 Apr
9 Jul
2 wk before
Garden cucumber
Cucumis sativus
3 – 10 Jun
28 Jun
3-4 wk
1 Jul
19 Jul
10 wk after
Florence Fennel
Foeniculum vulgare
27 May – 3 Jun
11 Jun
4-5 wk
1 Jul
9 Jul
10 wk after
5 Jun
29 Jun
6 wk after
Butter bean
Phaseolus lunatus
12 – 19 Jun
3-4 wk
10 Jul
11 wk after
Onion
Allium cepa (Cepa-gruppen)
31 Jan – 28 Feb
4 Apr
8-12 wk
25 Apr
30 May
Vid frost
8 May
20 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
19 Apr
19 Jun
1 wk before
19 Apr
9 Jun
1 wk before
Maize
Zea mays
23 – 30 May
18 Jun
3-4 wk
20 Jun
9 Jul
8 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
29 Apr – 6 May
8 Jul
3-4 wk
27 May
29 Jul
5 wk after
8 May
19 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
12 Apr
29 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Feb
14 Jun
5-7 wk
26 Mar
19 Jul
4 wk before
12 Apr
9 Jul
2 wk before
Potato
Solanum tuberosum
19 Mar – 2 Apr
11 Jun
4-6 wk
30 Apr
9 Jul
1 wk after
30 Apr
29 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Feb
24 Jun
5-7 wk
26 Mar
29 Jul
4 wk before
19 Apr
19 Jul
1 wk before
Pumpkin
Cucurbita pepo
3 – 10 Jun
11 Jul
3-4 wk
1 Jul
1 Aug
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
29 Apr – 6 May
5 Jul
3-4 wk
27 May
26 Jul
5 wk after
8 May
16 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
3 – 17 Apr
26 Jun
4-6 wk
15 May
24 Jul
3 wk after
Lettuce
Lactuca sativa
19 – 26 Mar
13 Jul
3-4 wk
16 Apr
3 Aug
1 wk before
19 Apr
24 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
5 – 19 Mar
26 Jun
4-6 wk
16 Apr
24 Jul
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
15 – 29 Mar
5 Jun
2-4 wk
12 Apr
19 Jun
2 wk before
12 Apr
9 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
19 Apr
19 Jun
1 wk before
19 Apr
9 Jun
1 wk before
Spinach
Spinacia oleracea
8 – 15 Mar
28 Jul
3-4 wk
5 Apr
18 Aug
3 wk before
5 Apr
8 Aug
3 wk before
Sweet potato
Ipomoea batatas
27 May – 10 Jun
4-6 wk
8 Jul
11 wk after
Garden tomato
Solanum lycopersicum
25 Apr – 9 May
28 May
6-8 wk
20 Jun
9 Jul
8 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
23 May – 6 Jun
13 Jul
2-4 wk
20 Jun
27 Jul
8 wk after
5 Jun
17 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
3 – 17 Apr
26 Jun
4-6 wk
15 May
24 Jul
3 wk after
Garden pea
Pisum sativum
8 – 15 Mar
28 Jun
3-4 wk
5 Apr
19 Jul
3 wk before
19 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
20 May – 3 Jun
19 Jun
4-6 wk
1 Jul
17 Jul
10 wk after
Lemon balm
Melissa officinalis
14 – 28 Feb
24 May
8-10 wk
25 Apr
19 Jul
Vid frost
21 May
9 Jul
4 wk after
Dill
Anethum graveolens
19 Apr
29 Jul
1 wk before
Wild chives
Allium schoenoprasum
29 Jan – 12 Feb
7 Jun
6-8 wk
26 Mar
19 Jul
4 wk before
19 Apr
9 Jul
1 wk before
Spearmint
Mentha spicata
11 Jan – 8 Feb
24 May
8-12 wk
5 Apr
19 Jul
3 wk before
21 May
9 Jul
4 wk after
Coriander
Coriandrum sativum
8 May
8 Aug
2 wk after
Garden sage
Salvia officinalis
18 Mar – 1 Apr
9 May
8-10 wk
27 May
4 Jul
5 wk after
Common thyme
Thymus vulgaris
6 – 20 Mar
14 May
8-10 wk
15 May
9 Jul
3 wk after
Oregano
Origanum vulgare
9 – 23 Mar
28 May
6-8 wk
4 May
9 Jul
1 wk after
21 May
29 Jun
4 wk after
Parsley
Petroselinum crispum
8 – 22 Feb
28 May
6-8 wk
5 Apr
9 Jul
3 wk before
19 Apr
29 Jun
1 wk before
Rosemary
Salvia rosmarinus
18 Feb – 18 Mar
10 Apr
10-14 wk
27 May
19 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
3 – 10 Jun
26 Jun
3-4 wk
1 Jul
17 Jul
10 wk after
Cornflower
Centaurea cyanus
5 Apr
19 Jul
3 wk before
19 Apr
9 Jul
1 wk before
Statice
Limonium sinuatum
11 – 25 Apr
14 May
8-10 wk
20 Jun
9 Jul
8 wk after
Sweet William
Dianthus barbatus
8 – 22 Feb
6-8 wk
5 Apr
3 wk before
30 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
25 Apr – 9 May
28 May
6-8 wk
20 Jun
9 Jul
8 wk after
8 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
18 Apr – 2 May
28 May
6-8 wk
13 Jun
9 Jul
7 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
26 Mar – 23 Apr
11 Jun
4-8 wk
21 May
9 Jul
4 wk after
21 May
29 Jun
4 wk after
Foxglove
Digitalis purpurea
25 Jan – 8 Feb
8-10 wk
5 Apr
3 wk before
8 May
2 wk after
Busy lizzie
Impatiens walleriana
8 Apr – 6 May
9 Jul
8-12 wk
1 Jul
3 Sep
10 wk after
Creeping zinnia
Sanvitalia procumbens
25 Apr – 9 May
7 Jun
6-8 wk
20 Jun
19 Jul
8 wk after
Hyacinth bean
Dolichos lablab
Fleece
20 May – 3 Jun
20 May
4-6 wk
1 Jul
10 wk after
Chinese lantern
Physalis alkekengi
18 Mar – 1 Apr
24 Apr
8-10 wk
27 May
19 Jun
5 wk after
Love in a mist
Nigella damascena
19 Apr
24 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
25 Apr – 9 May
18 May
6-8 wk
20 Jun
29 Jun
8 wk after
8 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
4 Mar – 1 Apr
24 Apr
8-12 wk
27 May
19 Jun
5 wk after
Cardoon
Cynara cardunculus
28 Mar – 25 Apr
8-12 wk
20 Jun
8 wk after
Regal-foxtail
Ptilotus nobilis
8 Apr – 6 May
12 May
8-12 wk
1 Jul
7 Jul
10 wk after
Globe amaranth
Gomphrena globosa
6 – 20 May
26 May
6-8 wk
1 Jul
7 Jul
10 wk after
Corn poppy
Papaver rhoeas
19 Apr
9 Jul
1 wk before
Snapdragon
Antirrhinum majus
22 Jan – 19 Feb
14 May
8-12 wk
16 Apr
9 Jul
1 wk before
30 Apr
29 Jun
1 wk after
Flossflower
Ageratum houstonianum
22 Apr – 6 May
24 May
8-10 wk
1 Jul
19 Jul
10 wk after
Sweet pea
Lathyrus odoratus
8 Feb – 1 Mar
4 Jun
5-8 wk
5 Apr
9 Jul
3 wk before
Stock
Matthiola incana
19 Feb – 5 Mar
7 Jun
6-8 wk
16 Apr
19 Jul
1 wk before
8 May
9 Jul
2 wk after
Wormwood
Artemisia absinthium
8 – 22 Feb
8 May
6-8 wk
5 Apr
19 Jun
3 wk before
8 May
9 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
20 May – 3 Jun
4 Jun
4-6 wk
1 Jul
2 Jul
10 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Jan
24 May
8-10 wk
26 Mar
19 Jul
4 wk before
30 Apr
9 Jul
1 wk after
Petunia
Petunia
28 Mar – 25 Apr
14 May
8-12 wk
20 Jun
9 Jul
8 wk after
Sweet Scabious
Scabiosa atropurpurea
1 – 15 Apr
8 May
6-8 wk
27 May
19 Jun
5 wk after
5 Jun
9 Jun
6 wk after
Common zinnia
Zinnia elegans
9 – 23 May
21 Jun
4-6 wk
20 Jun
19 Jul
8 wk after
Common morning glory
Ipomoea purpurea
27 May – 10 Jun
26 Jun
3-5 wk
1 Jul
17 Jul
10 wk after
Garden cosmos
Cosmos bipinnatus
9 – 23 May
11 Jun
4-6 wk
20 Jun
9 Jul
8 wk after
5 Jun
29 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
15 Apr – 13 May
11 Jun
8-12 wk
8 Jul
6 Aug
11 wk after
Bee balm
Monarda didyma
31 Jan – 28 Feb
24 Apr
8-12 wk
25 Apr
19 Jun
Vid frost
21 May
9 Jun
4 wk after
Yarrow
Achillea millefolium
8 – 22 Feb
8 Apr
6-8 wk
5 Apr
20 May
3 wk before
8 May
10 May
2 wk after
Safflower
Carthamus tinctorius
5 Apr
19 Jun
3 wk before
19 Apr
9 Jun
1 wk before
Iceland poppy
Papaver nudicaule
29 Jan – 12 Feb
28 May
6-8 wk
26 Mar
9 Jul
4 wk before
12 Apr
29 Jun
2 wk before
Bishop's flower
Ammi majus
29 Mar – 12 Apr
11 Jun
4-6 wk
10 May
9 Jul
2 wk after
8 May
29 Jun
2 wk after
Drumsticks
Pycnosorus globosus
8 – 22 Apr
10 Apr
10-12 wk
1 Jul
10 wk after
Sunflower
Helianthus annuus
23 – 30 May
18 Jun
3-4 wk
20 Jun
9 Jul
8 wk after
21 May
29 Jun
4 wk after
China aster
Callistephus chinensis
25 Apr – 9 May
7 Jun
6-8 wk
20 Jun
19 Jul
8 wk after
5 Jun
9 Jul
6 wk after
Annual phlox
Phlox drummondii
10 – 24 Apr
7 Jun
6-8 wk
5 Jun
19 Jul
6 wk after
5 Jun
9 Jul
6 wk after
Hollyhock
Alcea rosea
8 – 22 Feb
6-8 wk
5 Apr
3 wk before
8 May
2 wk after
Alpine delphinium
Delphinium elatum
20 Feb – 20 Mar
24 Apr
8-12 wk
15 May
19 Jun
3 wk after
21 May
9 Jun
4 wk after
African marigold
Tagetes erecta
25 Apr – 9 May
7 Jun
6-8 wk
20 Jun
19 Jul
8 wk after
Black-eyed Susan
Rudbeckia hirta
1 – 15 Apr
28 May
6-8 wk
27 May
9 Jul
5 wk after
5 Jun
29 Jun
6 wk after
Wood sage
Salvia nemorosa
23 Feb – 9 Mar
14 Apr
8-10 wk
4 May
9 Jun
1 wk after
21 May
30 May
4 wk after
Black-eyed susan vine
Thunbergia alata
22 Apr – 20 May
5 Jun
6-10 wk
1 Jul
17 Jul
10 wk after
California goldenpoppy
Eschscholzia californica
19 Apr
9 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
11 – 25 Apr
14 May
8-10 wk
20 Jun
9 Jul
8 wk after
Water forget-me-not
Myosotis scorpioides
8 – 22 Feb
8 May
6-8 wk
5 Apr
19 Jun
3 wk before
8 May
9 Jun
2 wk after