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Rel. frost
Last spring frost (0°C) 24 Apr Frost 1 of 10 years · 20 years of data
Frost-free season 219 days 24 Apr – 29 Nov
Probability that frost is over

90% = 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)
7 – 21 Apr
22 Jun
5-7 wk
26 May
27 Jul
5 wk after
18 Apr
17 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
2 – 16 Apr
4 Jul
4-6 wk
14 May
1 Aug
3 wk after
18 Apr
22 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
12 Mar – 9 Apr
5 May
8-12 wk
4 Jun
30 Jun
6 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
4 – 18 Feb
17 Jun
5-7 wk
25 Mar
22 Jul
4 wk before
11 Apr
12 Jul
2 wk before
Garden cucumber
Cucumis sativus
2 – 9 Jun
3-4 wk
30 Jun
10 wk after
Florence Fennel
Foeniculum vulgare
26 May – 2 Jun
14 Jun
4-5 wk
30 Jun
12 Jul
10 wk after
4 Jun
2 Jul
6 wk after
Butter bean
Phaseolus lunatus
Fleece
10 – 17 Jun
3-4 wk
8 Jul
11 wk after
Onion
Allium cepa (Cepa-gruppen)
30 Jan – 27 Feb
7 Apr
8-12 wk
24 Apr
2 Jun
Vid frost
7 May
23 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
18 Apr
22 Jun
1 wk before
18 Apr
12 Jun
1 wk before
Maize
Zea mays
Fleece
7 – 14 May
19 Jun
3-4 wk
4 Jun
10 Jul
6 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
11 Jul
3-4 wk
26 May
1 Aug
5 wk after
7 May
22 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
11 Apr
2 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
4 – 18 Feb
17 Jun
5-7 wk
25 Mar
22 Jul
4 wk before
11 Apr
12 Jul
2 wk before
Potato
Solanum tuberosum
18 Mar – 1 Apr
14 Jun
4-6 wk
29 Apr
12 Jul
1 wk after
29 Apr
2 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
4 – 18 Feb
27 Jun
5-7 wk
25 Mar
1 Aug
4 wk before
18 Apr
22 Jul
1 wk before
Pumpkin
Cucurbita pepo
2 – 9 Jun
4 Jul
3-4 wk
30 Jun
25 Jul
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Apr – 5 May
11 Jul
3-4 wk
26 May
1 Aug
5 wk after
7 May
22 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
2 – 16 Apr
29 Jun
4-6 wk
14 May
27 Jul
3 wk after
Lettuce
Lactuca sativa
18 – 25 Mar
16 Jul
3-4 wk
15 Apr
6 Aug
1 wk before
18 Apr
27 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
4 – 18 Mar
29 Jun
4-6 wk
15 Apr
27 Jul
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
14 – 28 Mar
8 Jun
2-4 wk
11 Apr
22 Jun
2 wk before
11 Apr
12 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
18 Apr
22 Jun
1 wk before
18 Apr
12 Jun
1 wk before
Spinach
Spinacia oleracea
7 – 14 Mar
31 Jul
3-4 wk
4 Apr
21 Aug
3 wk before
4 Apr
11 Aug
3 wk before
Sweet potato
Ipomoea batatas
26 May – 9 Jun
4-6 wk
7 Jul
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
9 – 23 Apr
29 May
6-8 wk
4 Jun
10 Jul
6 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
22 May – 5 Jun
6 Jul
2-4 wk
19 Jun
20 Jul
8 wk after
4 Jun
10 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
2 – 16 Apr
29 Jun
4-6 wk
14 May
27 Jul
3 wk after
Garden pea
Pisum sativum
7 – 14 Mar
1 Jul
3-4 wk
4 Apr
22 Jul
3 wk before
18 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
19 May – 2 Jun
12 Jun
4-6 wk
30 Jun
10 Jul
10 wk after
Lemon balm
Melissa officinalis
13 – 27 Feb
27 May
8-10 wk
24 Apr
22 Jul
Vid frost
20 May
12 Jul
4 wk after
Dill
Anethum graveolens
18 Apr
1 Aug
1 wk before
Wild chives
Allium schoenoprasum
28 Jan – 11 Feb
10 Jun
6-8 wk
25 Mar
22 Jul
4 wk before
18 Apr
12 Jul
1 wk before
Spearmint
Mentha spicata
10 Jan – 7 Feb
27 May
8-12 wk
4 Apr
22 Jul
3 wk before
20 May
12 Jul
4 wk after
Coriander
Coriandrum sativum
7 May
11 Aug
2 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
12 May
8-10 wk
26 May
7 Jul
5 wk after
Common thyme
Thymus vulgaris
5 – 19 Mar
17 May
8-10 wk
14 May
12 Jul
3 wk after
Oregano
Origanum vulgare
8 – 22 Mar
31 May
6-8 wk
3 May
12 Jul
1 wk after
20 May
2 Jul
4 wk after
Parsley
Petroselinum crispum
7 – 21 Feb
31 May
6-8 wk
4 Apr
12 Jul
3 wk before
18 Apr
2 Jul
1 wk before
Rosemary
Salvia rosmarinus
17 Feb – 17 Mar
13 Apr
10-14 wk
26 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
2 – 9 Jun
19 Jun
3-4 wk
30 Jun
10 Jul
10 wk after
Cornflower
Centaurea cyanus
4 Apr
22 Jul
3 wk before
18 Apr
12 Jul
1 wk before
Statice
Limonium sinuatum
10 – 24 Apr
17 May
8-10 wk
19 Jun
12 Jul
8 wk after
Sweet William
Dianthus barbatus
7 – 21 Feb
6-8 wk
4 Apr
3 wk before
29 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
24 Apr – 8 May
31 May
6-8 wk
19 Jun
12 Jul
8 wk after
7 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
17 Apr – 1 May
31 May
6-8 wk
12 Jun
12 Jul
7 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
25 Mar – 22 Apr
14 Jun
4-8 wk
20 May
12 Jul
4 wk after
20 May
2 Jul
4 wk after
Foxglove
Digitalis purpurea
24 Jan – 7 Feb
8-10 wk
4 Apr
3 wk before
7 May
2 wk after
Busy lizzie
Impatiens walleriana
7 Apr – 5 May
6 Jul
8-12 wk
30 Jun
31 Aug
10 wk after
Creeping zinnia
Sanvitalia procumbens
24 Apr – 8 May
10 Jun
6-8 wk
19 Jun
22 Jul
8 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
8 – 22 May
19 May
4-6 wk
19 Jun
8 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Mar
27 Apr
8-10 wk
26 May
22 Jun
5 wk after
Love in a mist
Nigella damascena
18 Apr
27 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
24 Apr – 8 May
21 May
6-8 wk
19 Jun
2 Jul
8 wk after
7 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Mar
27 Apr
8-12 wk
26 May
22 Jun
5 wk after
Cardoon
Cynara cardunculus
27 Mar – 24 Apr
28 Mar
8-12 wk
19 Jun
8 wk after
Regal-foxtail
Ptilotus nobilis
7 Apr – 5 May
5 May
8-12 wk
30 Jun
30 Jun
10 wk after
Globe amaranth
Gomphrena globosa
5 – 19 May
19 May
6-8 wk
30 Jun
30 Jun
10 wk after
Corn poppy
Papaver rhoeas
18 Apr
12 Jul
1 wk before
Snapdragon
Antirrhinum majus
21 Jan – 18 Feb
17 May
8-12 wk
15 Apr
12 Jul
1 wk before
29 Apr
2 Jul
1 wk after
Flossflower
Ageratum houstonianum
21 Apr – 5 May
27 May
8-10 wk
30 Jun
22 Jul
10 wk after
Sweet pea
Lathyrus odoratus
7 – 28 Feb
7 Jun
5-8 wk
4 Apr
12 Jul
3 wk before
Stock
Matthiola incana
18 Feb – 4 Mar
10 Jun
6-8 wk
15 Apr
22 Jul
1 wk before
7 May
12 Jul
2 wk after
Wormwood
Artemisia absinthium
7 – 21 Feb
11 May
6-8 wk
4 Apr
22 Jun
3 wk before
7 May
12 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
19 May – 2 Jun
28 May
4-6 wk
30 Jun
10 wk after
Garden pansy
Viola × wittrockiana
14 – 28 Jan
27 May
8-10 wk
25 Mar
22 Jul
4 wk before
29 Apr
12 Jul
1 wk after
Petunia
Petunia
27 Mar – 24 Apr
17 May
8-12 wk
19 Jun
12 Jul
8 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Mar – 14 Apr
11 May
6-8 wk
26 May
22 Jun
5 wk after
4 Jun
12 Jun
6 wk after
Common zinnia
Zinnia elegans
8 – 22 May
18 Jun
4-6 wk
19 Jun
16 Jul
8 wk after
Common morning glory
Ipomoea purpurea
26 May – 9 Jun
19 Jun
3-5 wk
30 Jun
10 Jul
10 wk after
Garden cosmos
Cosmos bipinnatus
8 – 22 May
14 Jun
4-6 wk
19 Jun
12 Jul
8 wk after
4 Jun
2 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
14 Apr – 12 May
4 Jun
8-12 wk
7 Jul
30 Jul
11 wk after
Bee balm
Monarda didyma
30 Jan – 27 Feb
27 Apr
8-12 wk
24 Apr
22 Jun
Vid frost
20 May
12 Jun
4 wk after
Yarrow
Achillea millefolium
7 – 21 Feb
11 Apr
6-8 wk
4 Apr
23 May
3 wk before
7 May
13 May
2 wk after
Safflower
Carthamus tinctorius
4 Apr
22 Jun
3 wk before
18 Apr
12 Jun
1 wk before
Iceland poppy
Papaver nudicaule
28 Jan – 11 Feb
31 May
6-8 wk
25 Mar
12 Jul
4 wk before
11 Apr
2 Jul
2 wk before
Bishop's flower
Ammi majus
28 Mar – 11 Apr
14 Jun
4-6 wk
9 May
12 Jul
2 wk after
7 May
2 Jul
2 wk after
Drumsticks
Pycnosorus globosus
7 – 21 Apr
7 Apr
10-12 wk
30 Jun
10 wk after
Sunflower
Helianthus annuus
22 – 29 May
21 Jun
3-4 wk
19 Jun
12 Jul
8 wk after
20 May
2 Jul
4 wk after
China aster
Callistephus chinensis
24 Apr – 8 May
10 Jun
6-8 wk
19 Jun
22 Jul
8 wk after
4 Jun
12 Jul
6 wk after
Annual phlox
Phlox drummondii
9 – 23 Apr
10 Jun
6-8 wk
4 Jun
22 Jul
6 wk after
4 Jun
12 Jul
6 wk after
Hollyhock
Alcea rosea
7 – 21 Feb
6-8 wk
4 Apr
3 wk before
7 May
2 wk after
Alpine delphinium
Delphinium elatum
19 Feb – 19 Mar
27 Apr
8-12 wk
14 May
22 Jun
3 wk after
20 May
12 Jun
4 wk after
African marigold
Tagetes erecta
24 Apr – 8 May
10 Jun
6-8 wk
19 Jun
22 Jul
8 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
31 May
6-8 wk
26 May
12 Jul
5 wk after
4 Jun
2 Jul
6 wk after
Wood sage
Salvia nemorosa
22 Feb – 8 Mar
17 Apr
8-10 wk
3 May
12 Jun
1 wk after
20 May
2 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
21 Apr – 19 May
29 May
6-10 wk
30 Jun
10 Jul
10 wk after
California goldenpoppy
Eschscholzia californica
18 Apr
12 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
10 – 24 Apr
17 May
8-10 wk
19 Jun
12 Jul
8 wk after
Water forget-me-not
Myosotis scorpioides
7 – 21 Feb
11 May
6-8 wk
4 Apr
22 Jun
3 wk before
7 May
12 Jun
2 wk after