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Rel. frost
Last spring frost (0°C) 2 Apr Frost 3 of 4 years · 20 years of data
Frost-free season 211 days 2 Apr – 30 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)
12 – 26 Feb
19 Jun
5-7 wk
2 Apr
24 Jul
0 wk
27 Mar
14 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
19 Feb – 5 Mar
1 Jul
4-6 wk
2 Apr
29 Jul
0 wk
27 Mar
19 Jul
1 wk before
Chili pepper
Capsicum annuum
18 Feb – 18 Mar
15 Apr
8-12 wk
13 May
10 Jun
6 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
12 – 26 Feb
14 Jun
5-7 wk
2 Apr
19 Jul
0 wk
20 Mar
9 Jul
2 wk before
Garden cucumber
Cucumis sativus
15 – 22 Apr
19 Jun
3-4 wk
13 May
10 Jul
6 wk after
Florence Fennel
Foeniculum vulgare
8 – 15 Apr
11 Jun
4-5 wk
13 May
9 Jul
6 wk after
13 May
29 Jun
6 wk after
Butter bean
Phaseolus lunatus
8 – 15 Jun
3-4 wk
6 Jul
14 wk after
Onion
Allium cepa (Cepa-gruppen)
8 Jan – 5 Feb
4 Apr
8-12 wk
2 Apr
30 May
0 wk
15 Apr
20 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
27 Mar
19 Jun
1 wk before
27 Mar
9 Jun
1 wk before
Maize
Zea mays
1 – 8 Apr
9 Jun
3-4 wk
29 Apr
30 Jun
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
5 – 12 Mar
8 Jul
3-4 wk
2 Apr
29 Jul
0 wk
15 Apr
19 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
2 Apr
9 Jul
0 wk
20 Mar
29 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
12 – 26 Feb
14 Jun
5-7 wk
2 Apr
19 Jul
0 wk
20 Mar
9 Jul
2 wk before
Potato
Solanum tuberosum
24 Feb – 10 Mar
9 Jun
4-6 wk
7 Apr
7 Jul
1 wk after
7 Apr
27 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
12 – 26 Feb
24 Jun
5-7 wk
2 Apr
29 Jul
0 wk
27 Mar
19 Jul
1 wk before
Pumpkin
Cucurbita pepo
15 – 22 Apr
8 Jul
3-4 wk
13 May
29 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
5 – 12 Mar
25 Jun
3-4 wk
2 Apr
16 Jul
0 wk
15 Apr
6 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
19 Feb – 5 Mar
26 Jun
4-6 wk
2 Apr
24 Jul
0 wk
Lettuce
Lactuca sativa
5 – 12 Mar
13 Jul
3-4 wk
2 Apr
3 Aug
0 wk
27 Mar
24 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
19 Feb – 5 Mar
26 Jun
4-6 wk
2 Apr
24 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
20 Feb – 6 Mar
5 Jun
2-4 wk
20 Mar
19 Jun
2 wk before
20 Mar
9 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
27 Mar
19 Jun
1 wk before
27 Mar
9 Jun
1 wk before
Spinach
Spinacia oleracea
5 – 12 Mar
28 Jul
3-4 wk
2 Apr
18 Aug
0 wk
13 Mar
8 Aug
3 wk before
Sweet potato
Ipomoea batatas
4 – 18 May
4-6 wk
15 Jun
11 wk after
Garden tomato
Solanum lycopersicum
4 – 18 Mar
19 May
6-8 wk
29 Apr
30 Jun
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
1 – 15 Apr
10 Jul
2-4 wk
29 Apr
24 Jul
4 wk after
13 May
14 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
19 Feb – 5 Mar
26 Jun
4-6 wk
2 Apr
24 Jul
0 wk
Garden pea
Pisum sativum
5 – 12 Mar
28 Jun
3-4 wk
2 Apr
19 Jul
0 wk
27 Mar
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
1 – 15 Apr
16 Jun
4-6 wk
13 May
14 Jul
6 wk after
Lemon balm
Melissa officinalis
22 Jan – 5 Feb
24 May
8-10 wk
2 Apr
19 Jul
0 wk
28 Apr
9 Jul
4 wk after
Dill
Anethum graveolens
27 Mar
29 Jul
1 wk before
Wild chives
Allium schoenoprasum
Season too short
5 – 19 Feb
7 Jun
6-8 wk
2 Apr
19 Jul
0 wk
27 Feb
9 Jul
5 wk before
Spearmint
Mentha spicata
8 Jan – 5 Feb
24 May
8-12 wk
2 Apr
19 Jul
0 wk
28 Apr
9 Jul
4 wk after
Coriander
Coriandrum sativum
2 Apr
18 Aug
0 wk
15 Apr
8 Aug
2 wk after
Garden sage
Salvia officinalis
22 Jan – 5 Feb
9 May
8-10 wk
2 Apr
4 Jul
0 wk
Common thyme
Thymus vulgaris
22 Jan – 5 Feb
14 May
8-10 wk
2 Apr
9 Jul
0 wk
Oregano
Origanum vulgare
5 – 19 Feb
28 May
6-8 wk
2 Apr
9 Jul
0 wk
28 Apr
29 Jun
4 wk after
Parsley
Petroselinum crispum
5 – 19 Feb
28 May
6-8 wk
2 Apr
9 Jul
0 wk
27 Mar
29 Jun
1 wk before
Rosemary
Salvia rosmarinus
25 Dec – 22 Jan
10 Apr
10-14 wk
2 Apr
19 Jun
0 wk

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
23 Jun
3-4 wk
13 May
14 Jul
6 wk after
Cornflower
Centaurea cyanus
2 Apr
19 Jul
0 wk
27 Mar
9 Jul
1 wk before
Statice
Limonium sinuatum
18 Feb – 4 Mar
14 May
8-10 wk
29 Apr
9 Jul
4 wk after
Sweet William
Dianthus barbatus
5 – 19 Feb
6-8 wk
2 Apr
0 wk
7 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
4 – 18 Mar
28 May
6-8 wk
29 Apr
9 Jul
4 wk after
15 Jun
29 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
27 Feb – 13 Mar
28 May
6-8 wk
24 Apr
9 Jul
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
3 – 31 Mar
11 Jun
4-8 wk
28 Apr
9 Jul
4 wk after
28 Apr
29 Jun
4 wk after
Foxglove
Digitalis purpurea
22 Jan – 5 Feb
8-10 wk
2 Apr
0 wk
15 Apr
2 wk after
Busy lizzie
Impatiens walleriana
18 Feb – 18 Mar
9 Jul
8-12 wk
13 May
3 Sep
6 wk after
Creeping zinnia
Sanvitalia procumbens
4 – 18 Mar
7 Jun
6-8 wk
29 Apr
19 Jul
4 wk after
Hyacinth bean
Dolichos lablab
19 Apr – 3 May
3 May
4-6 wk
31 May
31 May
8 wk after
Chinese lantern
Physalis alkekengi
22 Jan – 5 Feb
24 Apr
8-10 wk
2 Apr
19 Jun
0 wk
Love in a mist
Nigella damascena
2 Apr
4 Jul
0 wk
27 Mar
24 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
4 – 18 Mar
18 May
6-8 wk
29 Apr
29 Jun
4 wk after
15 Jun
19 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
8 Jan – 5 Feb
24 Apr
8-12 wk
2 Apr
19 Jun
0 wk
Cardoon
Cynara cardunculus
4 Feb – 4 Mar
25 Mar
8-12 wk
29 Apr
20 May
4 wk after
Regal-foxtail
Ptilotus nobilis
18 Feb – 18 Mar
9 May
8-12 wk
13 May
4 Jul
6 wk after
Globe amaranth
Gomphrena globosa
18 Mar – 1 Apr
23 May
6-8 wk
13 May
4 Jul
6 wk after
Corn poppy
Papaver rhoeas
2 Apr
19 Jul
0 wk
27 Mar
9 Jul
1 wk before
Snapdragon
Antirrhinum majus
8 Jan – 5 Feb
14 May
8-12 wk
2 Apr
9 Jul
0 wk
7 Apr
29 Jun
1 wk after
Flossflower
Ageratum houstonianum
4 – 18 Mar
24 May
8-10 wk
13 May
19 Jul
6 wk after
Sweet pea
Lathyrus odoratus
5 – 26 Feb
4 Jun
5-8 wk
2 Apr
9 Jul
0 wk
Stock
Matthiola incana
5 – 19 Feb
7 Jun
6-8 wk
2 Apr
19 Jul
0 wk
15 Apr
9 Jul
2 wk after
Wormwood
Artemisia absinthium
5 – 19 Feb
8 May
6-8 wk
2 Apr
19 Jun
0 wk
15 Apr
9 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
1 – 15 Apr
1 Jun
4-6 wk
13 May
29 Jun
6 wk after
Garden pansy
Viola × wittrockiana
22 Jan – 5 Feb
24 May
8-10 wk
2 Apr
19 Jul
0 wk
7 Apr
9 Jul
1 wk after
Petunia
Petunia
4 Feb – 4 Mar
14 May
8-12 wk
29 Apr
9 Jul
4 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Feb
8 May
6-8 wk
2 Apr
19 Jun
0 wk
13 May
9 Jun
6 wk after
Common zinnia
Zinnia elegans
18 Mar – 1 Apr
21 Jun
4-6 wk
29 Apr
19 Jul
4 wk after
Common morning glory
Ipomoea purpurea
8 – 22 Apr
23 Jun
3-5 wk
13 May
14 Jul
6 wk after
Garden cosmos
Cosmos bipinnatus
18 Mar – 1 Apr
11 Jun
4-6 wk
29 Apr
9 Jul
4 wk after
13 May
29 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
8 Mar – 5 Apr
8 Jun
8-12 wk
31 May
3 Aug
8 wk after
Bee balm
Monarda didyma
8 Jan – 5 Feb
24 Apr
8-12 wk
2 Apr
19 Jun
0 wk
28 Apr
9 Jun
4 wk after
Yarrow
Achillea millefolium
5 – 19 Feb
8 Apr
6-8 wk
2 Apr
20 May
0 wk
15 Apr
10 May
2 wk after
Safflower
Carthamus tinctorius
2 Apr
19 Jun
0 wk
27 Mar
9 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
5 – 19 Feb
28 May
6-8 wk
2 Apr
9 Jul
0 wk
15 Feb
29 Jun
7 wk before
Bishop's flower
Ammi majus
19 Feb – 5 Mar
11 Jun
4-6 wk
2 Apr
9 Jul
0 wk
15 Apr
29 Jun
2 wk after
Drumsticks
Pycnosorus globosus
18 Feb – 4 Mar
10 Apr
10-12 wk
13 May
19 Jun
6 wk after
Sunflower
Helianthus annuus
1 – 8 Apr
18 Jun
3-4 wk
29 Apr
9 Jul
4 wk after
28 Apr
29 Jun
4 wk after
China aster
Callistephus chinensis
4 – 18 Mar
7 Jun
6-8 wk
29 Apr
19 Jul
4 wk after
13 May
9 Jul
6 wk after
Annual phlox
Phlox drummondii
23 Feb – 9 Mar
7 Jun
6-8 wk
20 Apr
19 Jul
3 wk after
13 May
9 Jul
6 wk after
Hollyhock
Alcea rosea
5 – 19 Feb
6-8 wk
2 Apr
0 wk
15 Apr
2 wk after
Alpine delphinium
Delphinium elatum
8 Jan – 5 Feb
24 Apr
8-12 wk
2 Apr
19 Jun
0 wk
28 Apr
9 Jun
4 wk after
African marigold
Tagetes erecta
4 – 18 Mar
7 Jun
6-8 wk
29 Apr
19 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Feb
28 May
6-8 wk
2 Apr
9 Jul
0 wk
13 May
29 Jun
6 wk after
Wood sage
Salvia nemorosa
22 Jan – 5 Feb
14 Apr
8-10 wk
2 Apr
9 Jun
0 wk
28 Apr
30 May
4 wk after
Black-eyed susan vine
Thunbergia alata
4 Mar – 1 Apr
2 Jun
6-10 wk
13 May
14 Jul
6 wk after
California goldenpoppy
Eschscholzia californica
2 Apr
19 Jul
0 wk
27 Mar
9 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
18 Feb – 4 Mar
14 May
8-10 wk
29 Apr
9 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
Season too short
5 – 19 Feb
8 May
6-8 wk
2 Apr
19 Jun
0 wk
20 Mar
9 Jun
2 wk before