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Rel. frost
Last spring frost (0°C) 19 Mar Frost 9 of 10 years · 20 years of data
Frost-free season 216 days 19 Mar – 21 Oct
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

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Vegetables

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