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Rel. frost
Last spring frost (0°C) 7 Apr Frost 3 of 4 years · 20 years of data
Frost-free season 195 days 7 Apr – 19 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)
17 Feb – 3 Mar
18 Jun
5-7 wk
7 Apr
23 Jul
0 wk
31 Mar
13 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
24 Feb – 10 Mar
30 Jun
4-6 wk
7 Apr
28 Jul
0 wk
31 Mar
18 Jul
1 wk before
Chili pepper
Capsicum annuum
18 Feb – 18 Mar
8 Apr
8-12 wk
13 May
3 Jun
5 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
17 Feb – 3 Mar
13 Jun
5-7 wk
7 Apr
18 Jul
0 wk
26 Mar
8 Jul
2 wk before
Garden cucumber
Cucumis sativus
15 – 22 Apr
15 Jun
3-4 wk
13 May
6 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
8 – 15 Apr
10 Jun
4-5 wk
13 May
8 Jul
5 wk after
13 May
28 Jun
5 wk after
Butter bean
Phaseolus lunatus
Fleece
6 – 13 May
26 May
3-4 wk
3 Jun
16 Jun
8 wk after
Onion
Allium cepa (Cepa-gruppen)
13 Jan – 10 Feb
3 Apr
8-12 wk
7 Apr
29 May
0 wk
17 Apr
19 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
31 Mar
18 Jun
1 wk before
31 Mar
8 Jun
1 wk before
Maize
Zea mays
29 Mar – 5 Apr
5 Jun
3-4 wk
26 Apr
26 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
16 – 23 Mar
7 Jul
3-4 wk
13 Apr
28 Jul
1 wk after
17 Apr
18 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
7 Apr
8 Jul
0 wk
26 Mar
28 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
17 Feb – 3 Mar
13 Jun
5-7 wk
7 Apr
18 Jul
0 wk
26 Mar
8 Jul
2 wk before
Potato
Solanum tuberosum
1 – 15 Mar
8 Jun
4-6 wk
12 Apr
6 Jul
1 wk after
12 Apr
26 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
17 Feb – 3 Mar
23 Jun
5-7 wk
7 Apr
28 Jul
0 wk
31 Mar
18 Jul
1 wk before
Pumpkin
Cucurbita pepo
15 – 22 Apr
30 Jun
3-4 wk
13 May
21 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
16 – 23 Mar
18 Jun
3-4 wk
13 Apr
9 Jul
1 wk after
17 Apr
29 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
24 Feb – 10 Mar
25 Jun
4-6 wk
7 Apr
23 Jul
0 wk
Lettuce
Lactuca sativa
10 – 17 Mar
12 Jul
3-4 wk
7 Apr
2 Aug
0 wk
31 Mar
23 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
24 Feb – 10 Mar
25 Jun
4-6 wk
7 Apr
23 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Feb – 12 Mar
4 Jun
2-4 wk
26 Mar
18 Jun
2 wk before
26 Mar
8 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
31 Mar
18 Jun
1 wk before
31 Mar
8 Jun
1 wk before
Spinach
Spinacia oleracea
10 – 17 Mar
27 Jul
3-4 wk
7 Apr
17 Aug
0 wk
20 Mar
7 Aug
3 wk before
Sweet potato
Ipomoea batatas
4 – 18 May
4-6 wk
15 Jun
10 wk after
Garden tomato
Solanum lycopersicum
1 – 15 Mar
15 May
6-8 wk
26 Apr
26 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
29 Mar – 12 Apr
2 Jul
2-4 wk
26 Apr
16 Jul
3 wk after
13 May
6 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
24 Feb – 10 Mar
25 Jun
4-6 wk
7 Apr
23 Jul
0 wk
Garden pea
Pisum sativum
10 – 17 Mar
27 Jun
3-4 wk
7 Apr
18 Jul
0 wk
31 Mar
8 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
1 – 15 Apr
8 Jun
4-6 wk
13 May
6 Jul
5 wk after
Lemon balm
Melissa officinalis
27 Jan – 10 Feb
23 May
8-10 wk
7 Apr
18 Jul
0 wk
28 Apr
8 Jul
3 wk after
Dill
Anethum graveolens
31 Mar
28 Jul
1 wk before
Wild chives
Allium schoenoprasum
Season too short
10 – 24 Feb
6 Jun
6-8 wk
7 Apr
18 Jul
0 wk
9 Mar
8 Jul
4 wk before
Spearmint
Mentha spicata
13 Jan – 10 Feb
23 May
8-12 wk
7 Apr
18 Jul
0 wk
28 Apr
8 Jul
3 wk after
Coriander
Coriandrum sativum
7 Apr
17 Aug
0 wk
17 Apr
7 Aug
1 wk after
Garden sage
Salvia officinalis
2 – 16 Feb
8 May
8-10 wk
13 Apr
3 Jul
1 wk after
Common thyme
Thymus vulgaris
27 Jan – 10 Feb
13 May
8-10 wk
7 Apr
8 Jul
0 wk
Oregano
Origanum vulgare
10 – 24 Feb
27 May
6-8 wk
7 Apr
8 Jul
0 wk
28 Apr
28 Jun
3 wk after
Parsley
Petroselinum crispum
10 – 24 Feb
27 May
6-8 wk
7 Apr
8 Jul
0 wk
31 Mar
28 Jun
1 wk before
Rosemary
Salvia rosmarinus
5 Jan – 2 Feb
9 Apr
10-14 wk
13 Apr
18 Jun
1 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
15 – 22 Apr
15 Jun
3-4 wk
13 May
6 Jul
5 wk after
Cornflower
Centaurea cyanus
7 Apr
18 Jul
0 wk
31 Mar
8 Jul
1 wk before
Statice
Limonium sinuatum
15 Feb – 1 Mar
13 May
8-10 wk
26 Apr
8 Jul
3 wk after
Sweet William
Dianthus barbatus
10 – 24 Feb
6-8 wk
7 Apr
0 wk
12 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
1 – 15 Mar
27 May
6-8 wk
26 Apr
8 Jul
3 wk after
15 Jun
28 Jun
10 wk after
Pinnate dahlia
Dahlia × pinnata
24 Feb – 10 Mar
27 May
6-8 wk
21 Apr
8 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
3 – 31 Mar
10 Jun
4-8 wk
28 Apr
8 Jul
3 wk after
28 Apr
28 Jun
3 wk after
Foxglove
Digitalis purpurea
27 Jan – 10 Feb
8-10 wk
7 Apr
0 wk
17 Apr
1 wk after
Busy lizzie
Impatiens walleriana
18 Feb – 18 Mar
4 Jul
8-12 wk
13 May
29 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
1 – 15 Mar
6 Jun
6-8 wk
26 Apr
18 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Fleece
1 – 15 Apr
9 May
4-6 wk
13 May
6 Jun
5 wk after
Chinese lantern
Physalis alkekengi
2 – 16 Feb
23 Apr
8-10 wk
13 Apr
18 Jun
1 wk after
Love in a mist
Nigella damascena
7 Apr
3 Jul
0 wk
31 Mar
23 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
1 – 15 Mar
17 May
6-8 wk
26 Apr
28 Jun
3 wk after
15 Jun
18 Jun
10 wk after
Purple-top vervain
Verbena bonariensis
19 Jan – 16 Feb
23 Apr
8-12 wk
13 Apr
18 Jun
1 wk after
Cardoon
Cynara cardunculus
1 Feb – 1 Mar
24 Mar
8-12 wk
26 Apr
19 May
3 wk after
Regal-foxtail
Ptilotus nobilis
18 Feb – 18 Mar
1 May
8-12 wk
13 May
26 Jun
5 wk after
Globe amaranth
Gomphrena globosa
18 Mar – 1 Apr
15 May
6-8 wk
13 May
26 Jun
5 wk after
Corn poppy
Papaver rhoeas
7 Apr
18 Jul
0 wk
31 Mar
8 Jul
1 wk before
Snapdragon
Antirrhinum majus
13 Jan – 10 Feb
13 May
8-12 wk
7 Apr
8 Jul
0 wk
12 Apr
28 Jun
1 wk after
Flossflower
Ageratum houstonianum
4 – 18 Mar
23 May
8-10 wk
13 May
18 Jul
5 wk after
Sweet pea
Lathyrus odoratus
10 Feb – 3 Mar
3 Jun
5-8 wk
7 Apr
8 Jul
0 wk
Stock
Matthiola incana
10 – 24 Feb
6 Jun
6-8 wk
7 Apr
18 Jul
0 wk
17 Apr
8 Jul
1 wk after
Wormwood
Artemisia absinthium
10 – 24 Feb
7 May
6-8 wk
7 Apr
18 Jun
0 wk
17 Apr
8 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
1 – 15 Apr
24 May
4-6 wk
13 May
21 Jun
5 wk after
Garden pansy
Viola × wittrockiana
27 Jan – 10 Feb
23 May
8-10 wk
7 Apr
18 Jul
0 wk
12 Apr
8 Jul
1 wk after
Petunia
Petunia
1 Feb – 1 Mar
13 May
8-12 wk
26 Apr
8 Jul
3 wk after
Sweet Scabious
Scabiosa atropurpurea
16 Feb – 2 Mar
7 May
6-8 wk
13 Apr
18 Jun
1 wk after
13 May
8 Jun
5 wk after
Common zinnia
Zinnia elegans
15 – 29 Mar
16 Jun
4-6 wk
26 Apr
14 Jul
3 wk after
Common morning glory
Ipomoea purpurea
8 – 22 Apr
15 Jun
3-5 wk
13 May
6 Jul
5 wk after
Garden cosmos
Cosmos bipinnatus
15 – 29 Mar
10 Jun
4-6 wk
26 Apr
8 Jul
3 wk after
13 May
28 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
2 – 30 Mar
31 May
8-12 wk
25 May
26 Jul
7 wk after
Bee balm
Monarda didyma
13 Jan – 10 Feb
23 Apr
8-12 wk
7 Apr
18 Jun
0 wk
28 Apr
8 Jun
3 wk after
Yarrow
Achillea millefolium
10 – 24 Feb
7 Apr
6-8 wk
7 Apr
19 May
0 wk
17 Apr
9 May
1 wk after
Safflower
Carthamus tinctorius
7 Apr
18 Jun
0 wk
31 Mar
8 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
10 – 24 Feb
27 May
6-8 wk
7 Apr
8 Jul
0 wk
27 Feb
28 Jun
6 wk before
Bishop's flower
Ammi majus
24 Feb – 10 Mar
10 Jun
4-6 wk
7 Apr
8 Jul
0 wk
17 Apr
28 Jun
1 wk after
Drumsticks
Pycnosorus globosus
18 Feb – 4 Mar
5 Apr
10-12 wk
13 May
14 Jun
5 wk after
Sunflower
Helianthus annuus
29 Mar – 5 Apr
17 Jun
3-4 wk
26 Apr
8 Jul
3 wk after
28 Apr
28 Jun
3 wk after
China aster
Callistephus chinensis
1 – 15 Mar
6 Jun
6-8 wk
26 Apr
18 Jul
3 wk after
13 May
8 Jul
5 wk after
Annual phlox
Phlox drummondii
21 Feb – 7 Mar
6 Jun
6-8 wk
18 Apr
18 Jul
2 wk after
13 May
8 Jul
5 wk after
Hollyhock
Alcea rosea
10 – 24 Feb
6-8 wk
7 Apr
0 wk
17 Apr
1 wk after
Alpine delphinium
Delphinium elatum
13 Jan – 10 Feb
23 Apr
8-12 wk
7 Apr
18 Jun
0 wk
28 Apr
8 Jun
3 wk after
African marigold
Tagetes erecta
1 – 15 Mar
6 Jun
6-8 wk
26 Apr
18 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
16 Feb – 2 Mar
27 May
6-8 wk
13 Apr
8 Jul
1 wk after
13 May
28 Jun
5 wk after
Wood sage
Salvia nemorosa
27 Jan – 10 Feb
13 Apr
8-10 wk
7 Apr
8 Jun
0 wk
28 Apr
29 May
3 wk after
Black-eyed susan vine
Thunbergia alata
4 Mar – 1 Apr
25 May
6-10 wk
13 May
6 Jul
5 wk after
California goldenpoppy
Eschscholzia californica
7 Apr
18 Jul
0 wk
31 Mar
8 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
15 Feb – 1 Mar
13 May
8-10 wk
26 Apr
8 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
10 – 24 Feb
7 May
6-8 wk
7 Apr
18 Jun
0 wk
26 Mar
8 Jun
2 wk before