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Rel. frost
Last spring frost (0°C) 30 Mar Frost 3 of 4 years · 20 years of data
Frost-free season 217 days 30 Mar – 2 Nov
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)
13 – 27 Mar
20 Jun
5-7 wk
1 May
25 Jul
5 wk after
24 Mar
15 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
8 – 22 Mar
2 Jul
4-6 wk
19 Apr
30 Jul
3 wk after
24 Mar
20 Jul
1 wk before
Chili pepper
Capsicum annuum
13 Mar – 10 Apr
12 Apr
8-12 wk
5 Jun
7 Jun
10 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
10 – 24 Jan
15 Jun
5-7 wk
28 Feb
20 Jul
4 wk before
17 Mar
10 Jul
2 wk before
Garden cucumber
Cucumis sativus
8 – 15 May
23 Jun
3-4 wk
5 Jun
14 Jul
10 wk after
Florence Fennel
Foeniculum vulgare
1 – 8 May
12 Jun
4-5 wk
5 Jun
10 Jul
10 wk after
10 May
30 Jun
6 wk after
Butter bean
Phaseolus lunatus
Fleece
16 – 23 May
3 Jun
3-4 wk
13 Jun
24 Jun
11 wk after
Onion
Allium cepa (Cepa-gruppen)
5 Jan – 2 Feb
5 Apr
8-12 wk
30 Mar
31 May
Vid frost
12 Apr
21 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
24 Mar
20 Jun
1 wk before
24 Mar
10 Jun
1 wk before
Maize
Zea mays
27 Apr – 4 May
13 Jun
3-4 wk
25 May
4 Jul
8 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 Apr
9 Jul
3-4 wk
1 May
30 Jul
5 wk after
12 Apr
20 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
17 Mar
30 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Jan
15 Jun
5-7 wk
28 Feb
20 Jul
4 wk before
17 Mar
10 Jul
2 wk before
Potato
Solanum tuberosum
21 Feb – 7 Mar
12 Jun
4-6 wk
4 Apr
10 Jul
1 wk after
4 Apr
30 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Jan
25 Jun
5-7 wk
28 Feb
30 Jul
4 wk before
24 Mar
20 Jul
1 wk before
Pumpkin
Cucurbita pepo
8 – 15 May
8 Jul
3-4 wk
5 Jun
29 Jul
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 Apr
25 Jun
3-4 wk
1 May
16 Jul
5 wk after
12 Apr
6 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
8 – 22 Mar
27 Jun
4-6 wk
19 Apr
25 Jul
3 wk after
Lettuce
Lactuca sativa
21 – 28 Feb
14 Jul
3-4 wk
21 Mar
4 Aug
1 wk before
24 Mar
25 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
7 – 21 Feb
27 Jun
4-6 wk
21 Mar
25 Jul
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
17 Feb – 3 Mar
6 Jun
2-4 wk
17 Mar
20 Jun
2 wk before
17 Mar
10 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
24 Mar
20 Jun
1 wk before
24 Mar
10 Jun
1 wk before
Spinach
Spinacia oleracea
10 – 17 Feb
29 Jul
3-4 wk
10 Mar
19 Aug
3 wk before
10 Mar
9 Aug
3 wk before
Sweet potato
Ipomoea batatas
1 – 15 May
4-6 wk
12 Jun
11 wk after
Garden tomato
Solanum lycopersicum
30 Mar – 13 Apr
23 May
6-8 wk
25 May
4 Jul
8 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
27 Apr – 11 May
10 Jul
2-4 wk
25 May
24 Jul
8 wk after
10 May
14 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
8 – 22 Mar
27 Jun
4-6 wk
19 Apr
25 Jul
3 wk after
Garden pea
Pisum sativum
10 – 17 Feb
29 Jun
3-4 wk
10 Mar
20 Jul
3 wk before
24 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
24 Apr – 8 May
16 Jun
4-6 wk
5 Jun
14 Jul
10 wk after
Lemon balm
Melissa officinalis
19 Jan – 2 Feb
25 May
8-10 wk
30 Mar
20 Jul
Vid frost
25 Apr
10 Jul
4 wk after
Dill
Anethum graveolens
24 Mar
30 Jul
1 wk before
Wild chives
Allium schoenoprasum
3 – 17 Jan
8 Jun
6-8 wk
28 Feb
20 Jul
4 wk before
24 Mar
10 Jul
1 wk before
Spearmint
Mentha spicata
16 Dec – 13 Jan
25 May
8-12 wk
10 Mar
20 Jul
3 wk before
25 Apr
10 Jul
4 wk after
Coriander
Coriandrum sativum
12 Apr
9 Aug
2 wk after
Garden sage
Salvia officinalis
20 Feb – 6 Mar
10 May
8-10 wk
1 May
5 Jul
5 wk after
Common thyme
Thymus vulgaris
8 – 22 Feb
15 May
8-10 wk
19 Apr
10 Jul
3 wk after
Oregano
Origanum vulgare
11 – 25 Feb
29 May
6-8 wk
8 Apr
10 Jul
1 wk after
25 Apr
30 Jun
4 wk after
Parsley
Petroselinum crispum
13 – 27 Jan
29 May
6-8 wk
10 Mar
10 Jul
3 wk before
24 Mar
30 Jun
1 wk before
Rosemary
Salvia rosmarinus
23 Jan – 20 Feb
11 Apr
10-14 wk
1 May
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
8 – 15 May
23 Jun
3-4 wk
5 Jun
14 Jul
10 wk after
Cornflower
Centaurea cyanus
10 Mar
20 Jul
3 wk before
24 Mar
10 Jul
1 wk before
Statice
Limonium sinuatum
16 – 30 Mar
15 May
8-10 wk
25 May
10 Jul
8 wk after
Sweet William
Dianthus barbatus
13 – 27 Jan
6-8 wk
10 Mar
3 wk before
4 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
30 Mar – 13 Apr
29 May
6-8 wk
25 May
10 Jul
8 wk after
12 Jun
30 Jun
11 wk after
Pinnate dahlia
Dahlia × pinnata
23 Mar – 6 Apr
29 May
6-8 wk
18 May
10 Jul
7 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
28 Feb – 28 Mar
12 Jun
4-8 wk
25 Apr
10 Jul
4 wk after
25 Apr
30 Jun
4 wk after
Foxglove
Digitalis purpurea
30 Dec – 13 Jan
8-10 wk
10 Mar
3 wk before
12 Apr
2 wk after
Busy lizzie
Impatiens walleriana
13 Mar – 10 Apr
10 Jul
8-12 wk
5 Jun
4 Sep
10 wk after
Creeping zinnia
Sanvitalia procumbens
30 Mar – 13 Apr
8 Jun
6-8 wk
25 May
20 Jul
8 wk after
Hyacinth bean
Dolichos lablab
Fleece
24 Apr – 8 May
17 May
4-6 wk
5 Jun
14 Jun
10 wk after
Chinese lantern
Physalis alkekengi
20 Feb – 6 Mar
25 Apr
8-10 wk
1 May
20 Jun
5 wk after
Love in a mist
Nigella damascena
24 Mar
25 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
30 Mar – 13 Apr
19 May
6-8 wk
25 May
30 Jun
8 wk after
12 Jun
20 Jun
11 wk after
Purple-top vervain
Verbena bonariensis
6 Feb – 6 Mar
25 Apr
8-12 wk
1 May
20 Jun
5 wk after
Cardoon
Cynara cardunculus
2 – 30 Mar
26 Mar
8-12 wk
25 May
8 wk after
Regal-foxtail
Ptilotus nobilis
13 Mar – 10 Apr
9 May
8-12 wk
5 Jun
4 Jul
10 wk after
Globe amaranth
Gomphrena globosa
10 – 24 Apr
23 May
6-8 wk
5 Jun
4 Jul
10 wk after
Corn poppy
Papaver rhoeas
24 Mar
10 Jul
1 wk before
Snapdragon
Antirrhinum majus
27 Dec – 24 Jan
15 May
8-12 wk
21 Mar
10 Jul
1 wk before
4 Apr
30 Jun
1 wk after
Flossflower
Ageratum houstonianum
27 Mar – 10 Apr
25 May
8-10 wk
5 Jun
20 Jul
10 wk after
Sweet pea
Lathyrus odoratus
13 Jan – 3 Feb
5 Jun
5-8 wk
10 Mar
10 Jul
3 wk before
Stock
Matthiola incana
24 Jan – 7 Feb
8 Jun
6-8 wk
21 Mar
20 Jul
1 wk before
12 Apr
10 Jul
2 wk after
Wormwood
Artemisia absinthium
13 – 27 Jan
9 May
6-8 wk
10 Mar
20 Jun
3 wk before
12 Apr
10 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
24 Apr – 8 May
1 Jun
4-6 wk
5 Jun
29 Jun
10 wk after
Garden pansy
Viola × wittrockiana
20 Dec – 3 Jan
25 May
8-10 wk
28 Feb
20 Jul
4 wk before
4 Apr
10 Jul
1 wk after
Petunia
Petunia
2 – 30 Mar
15 May
8-12 wk
25 May
10 Jul
8 wk after
Sweet Scabious
Scabiosa atropurpurea
6 – 20 Mar
9 May
6-8 wk
1 May
20 Jun
5 wk after
10 May
10 Jun
6 wk after
Common zinnia
Zinnia elegans
13 – 27 Apr
22 Jun
4-6 wk
25 May
20 Jul
8 wk after
Common morning glory
Ipomoea purpurea
1 – 15 May
23 Jun
3-5 wk
5 Jun
14 Jul
10 wk after
Garden cosmos
Cosmos bipinnatus
13 – 27 Apr
12 Jun
4-6 wk
25 May
10 Jul
8 wk after
10 May
30 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
20 Mar – 17 Apr
8 Jun
8-12 wk
12 Jun
3 Aug
11 wk after
Bee balm
Monarda didyma
5 Jan – 2 Feb
25 Apr
8-12 wk
30 Mar
20 Jun
Vid frost
25 Apr
10 Jun
4 wk after
Yarrow
Achillea millefolium
13 – 27 Jan
9 Apr
6-8 wk
10 Mar
21 May
3 wk before
12 Apr
11 May
2 wk after
Safflower
Carthamus tinctorius
10 Mar
20 Jun
3 wk before
24 Mar
10 Jun
1 wk before
Iceland poppy
Papaver nudicaule
3 – 17 Jan
29 May
6-8 wk
28 Feb
10 Jul
4 wk before
17 Mar
30 Jun
2 wk before
Bishop's flower
Ammi majus
3 – 17 Mar
12 Jun
4-6 wk
14 Apr
10 Jul
2 wk after
12 Apr
30 Jun
2 wk after
Drumsticks
Pycnosorus globosus
13 – 27 Mar
11 Apr
10-12 wk
5 Jun
20 Jun
10 wk after
Sunflower
Helianthus annuus
27 Apr – 4 May
19 Jun
3-4 wk
25 May
10 Jul
8 wk after
25 Apr
30 Jun
4 wk after
China aster
Callistephus chinensis
30 Mar – 13 Apr
8 Jun
6-8 wk
25 May
20 Jul
8 wk after
10 May
10 Jul
6 wk after
Annual phlox
Phlox drummondii
15 – 29 Mar
8 Jun
6-8 wk
10 May
20 Jul
6 wk after
10 May
10 Jul
6 wk after
Hollyhock
Alcea rosea
13 – 27 Jan
6-8 wk
10 Mar
3 wk before
12 Apr
2 wk after
Alpine delphinium
Delphinium elatum
25 Jan – 22 Feb
25 Apr
8-12 wk
19 Apr
20 Jun
3 wk after
25 Apr
10 Jun
4 wk after
African marigold
Tagetes erecta
30 Mar – 13 Apr
8 Jun
6-8 wk
25 May
20 Jul
8 wk after
Black-eyed Susan
Rudbeckia hirta
6 – 20 Mar
29 May
6-8 wk
1 May
10 Jul
5 wk after
10 May
30 Jun
6 wk after
Wood sage
Salvia nemorosa
28 Jan – 11 Feb
15 Apr
8-10 wk
8 Apr
10 Jun
1 wk after
25 Apr
31 May
4 wk after
Black-eyed susan vine
Thunbergia alata
27 Mar – 24 Apr
2 Jun
6-10 wk
5 Jun
14 Jul
10 wk after
California goldenpoppy
Eschscholzia californica
24 Mar
10 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
16 – 30 Mar
15 May
8-10 wk
25 May
10 Jul
8 wk after
Water forget-me-not
Myosotis scorpioides
13 – 27 Jan
9 May
6-8 wk
10 Mar
20 Jun
3 wk before
12 Apr
10 Jun
2 wk after