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No frost in sight Last frost normally in 2 days (11 May), but frost-free in the forecast.
Method
Rel. frost
Last spring frost (0°C) 11 May Normal year · 20 years of data
Frost-free season 147 days 11 May – 5 Oct
Probability that frost is over

50% = 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)
23 Mar – 6 Apr
13 Jun
5-7 wk
11 May
18 Jul
0 wk
12 May
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
30 Mar – 13 Apr
25 Jun
4-6 wk
11 May
23 Jul
0 wk
12 May
13 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
27 Feb – 27 Mar
16 Apr
8-12 wk
22 May
11 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
23 Mar – 6 Apr
8 Jun
5-7 wk
11 May
13 Jul
0 wk
11 May
3 Jul
0 wk
Garden cucumber
Cucumis sativus
17 – 24 May
24 May
3-4 wk
14 Jun
14 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
10 – 17 May
2 Jun
4-5 wk
14 Jun
30 Jun
5 wk after
23 Jun
6 wk after
Butter bean
Phaseolus lunatus
Season too short
24 – 31 May
3-4 wk
21 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
16 Feb – 16 Mar
29 Mar
8-12 wk
11 May
24 May
0 wk
24 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
12 May
13 Jun
0 wk
12 May
3 Jun
0 wk
Maize
Zea mays
3 – 10 May
14 May
3-4 wk
31 May
4 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
19 – 26 Apr
2 Jul
3-4 wk
17 May
23 Jul
1 wk after
24 May
13 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
11 May
3 Jul
0 wk
11 May
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
23 Mar – 6 Apr
8 Jun
5-7 wk
11 May
13 Jul
0 wk
11 May
3 Jul
0 wk
Potato
Solanum tuberosum
9 – 23 Apr
27 May
4-6 wk
21 May
24 Jun
1 wk after
21 May
14 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
23 Mar – 6 Apr
18 Jun
5-7 wk
11 May
23 Jul
0 wk
12 May
13 Jul
0 wk
Pumpkin
Cucurbita pepo
17 – 24 May
15 Jun
3-4 wk
14 Jun
6 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
19 – 26 Apr
10 Jun
3-4 wk
17 May
1 Jul
1 wk after
24 May
21 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
30 Mar – 13 Apr
20 Jun
4-6 wk
11 May
18 Jul
0 wk
Lettuce
Lactuca sativa
13 – 20 Apr
7 Jul
3-4 wk
11 May
28 Jul
0 wk
12 May
18 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
30 Mar – 13 Apr
20 Jun
4-6 wk
11 May
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
13 – 27 Apr
30 May
2-4 wk
11 May
13 Jun
0 wk
11 May
3 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
12 May
13 Jun
0 wk
12 May
3 Jun
0 wk
Spinach
Spinacia oleracea
13 – 20 Apr
22 Jul
3-4 wk
11 May
12 Aug
0 wk
8 May
2 Aug
0 wk
Sweet potato
Ipomoea batatas
5 – 19 Jun
4-6 wk
17 Jul
10 wk after
Garden tomato
Solanum lycopersicum
5 – 19 Apr
23 Apr
6-8 wk
31 May
4 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
3 – 17 May
17 Jun
2-4 wk
31 May
1 Jul
3 wk after
23 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
30 Mar – 13 Apr
20 Jun
4-6 wk
11 May
18 Jul
0 wk
Garden pea
Pisum sativum
13 – 20 Apr
22 Jun
3-4 wk
11 May
13 Jul
0 wk
12 May
3 Jul
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
3 – 17 May
24 May
4-6 wk
14 Jun
21 Jun
5 wk after
Lemon balm
Melissa officinalis
2 – 16 Mar
18 May
8-10 wk
11 May
13 Jul
0 wk
5 Jun
3 Jul
4 wk after
Dill
Anethum graveolens
12 May
23 Jul
0 wk
Wild chives
Allium schoenoprasum
16 – 30 Mar
1 Jun
6-8 wk
11 May
13 Jul
0 wk
12 May
3 Jul
0 wk
Spearmint
Mentha spicata
16 Feb – 16 Mar
18 May
8-12 wk
11 May
13 Jul
0 wk
5 Jun
3 Jul
4 wk after
Coriander
Coriandrum sativum
11 May
12 Aug
0 wk
24 May
2 Aug
2 wk after
Garden sage
Salvia officinalis
8 – 22 Mar
3 May
8-10 wk
17 May
28 Jun
1 wk after
Common thyme
Thymus vulgaris
2 – 16 Mar
8 May
8-10 wk
11 May
3 Jul
0 wk
Oregano
Origanum vulgare
16 – 30 Mar
22 May
6-8 wk
11 May
3 Jul
0 wk
5 Jun
23 Jun
4 wk after
Parsley
Petroselinum crispum
16 – 30 Mar
22 May
6-8 wk
11 May
3 Jul
0 wk
12 May
23 Jun
0 wk
Rosemary
Salvia rosmarinus
8 Feb – 8 Mar
4 Apr
10-14 wk
17 May
13 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
17 – 24 May
31 May
3-4 wk
14 Jun
21 Jun
5 wk after
Cornflower
Centaurea cyanus
11 May
13 Jul
0 wk
12 May
3 Jul
0 wk
Statice
Limonium sinuatum
22 Mar – 5 Apr
30 Apr
8-10 wk
31 May
25 Jun
3 wk after
Sweet William
Dianthus barbatus
16 – 30 Mar
6-8 wk
11 May
0 wk
21 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
5 – 19 Apr
14 May
6-8 wk
31 May
25 Jun
3 wk after
17 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
31 Mar – 14 Apr
18 May
6-8 wk
26 May
29 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
10 Apr – 8 May
1 Jun
4-8 wk
5 Jun
29 Jun
4 wk after
5 Jun
19 Jun
4 wk after
Foxglove
Digitalis purpurea
2 – 16 Mar
8-10 wk
11 May
0 wk
24 May
2 wk after
Busy lizzie
Impatiens walleriana
22 Mar – 19 Apr
21 Jun
8-12 wk
14 Jun
16 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
5 – 19 Apr
24 May
6-8 wk
31 May
5 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
19 Apr – 3 May
4 May
4-6 wk
31 May
1 Jun
3 wk after
Chinese lantern
Physalis alkekengi
8 – 22 Mar
18 Apr
8-10 wk
17 May
13 Jun
1 wk after
Love in a mist
Nigella damascena
11 May
28 Jun
0 wk
12 May
18 Jun
0 wk
Strawflower
Xerochrysum bracteatum
5 – 19 Apr
4 May
6-8 wk
31 May
15 Jun
3 wk after
17 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
22 Feb – 22 Mar
18 Apr
8-12 wk
17 May
13 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
27 Feb – 27 Mar
19 Mar
8-12 wk
22 May
2 wk after
Regal-foxtail
Ptilotus nobilis
22 Mar – 19 Apr
16 Apr
8-12 wk
14 Jun
5 wk after
Globe amaranth
Gomphrena globosa
19 Apr – 3 May
30 Apr
6-8 wk
14 Jun
5 wk after
Corn poppy
Papaver rhoeas
11 May
13 Jul
0 wk
12 May
3 Jul
0 wk
Snapdragon
Antirrhinum majus
16 Feb – 16 Mar
8 May
8-12 wk
11 May
3 Jul
0 wk
21 May
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
5 – 19 Apr
10 May
8-10 wk
14 Jun
5 Jul
5 wk after
Sweet pea
Lathyrus odoratus
16 Mar – 6 Apr
29 May
5-8 wk
11 May
3 Jul
0 wk
Stock
Matthiola incana
16 – 30 Mar
1 Jun
6-8 wk
11 May
13 Jul
0 wk
24 May
3 Jul
2 wk after
Wormwood
Artemisia absinthium
16 – 30 Mar
2 May
6-8 wk
11 May
13 Jun
0 wk
24 May
3 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
3 – 17 May
9 May
4-6 wk
14 Jun
5 wk after
Garden pansy
Viola × wittrockiana
2 – 16 Mar
18 May
8-10 wk
11 May
13 Jul
0 wk
21 May
3 Jul
1 wk after
Petunia
Petunia
8 Mar – 5 Apr
30 Apr
8-12 wk
31 May
25 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
22 Mar – 5 Apr
2 May
6-8 wk
17 May
13 Jun
1 wk after
23 Jun
6 wk after
Common zinnia
Zinnia elegans
19 Apr – 3 May
3 Jun
4-6 wk
31 May
1 Jul
3 wk after
Common morning glory
Ipomoea purpurea
10 – 24 May
31 May
3-5 wk
14 Jun
21 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
19 Apr – 3 May
1 Jun
4-6 wk
31 May
29 Jun
3 wk after
23 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
3 Apr – 1 May
16 May
8-12 wk
26 Jun
11 Jul
7 wk after
Bee balm
Monarda didyma
16 Feb – 16 Mar
18 Apr
8-12 wk
11 May
13 Jun
0 wk
5 Jun
4 wk after
Yarrow
Achillea millefolium
16 – 30 Mar
2 Apr
6-8 wk
11 May
14 May
0 wk
24 May
2 wk after
Safflower
Carthamus tinctorius
11 May
13 Jun
0 wk
12 May
3 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
16 – 30 Mar
22 May
6-8 wk
11 May
3 Jul
0 wk
25 Apr
23 Jun
2 wk before
Bishop's flower
Ammi majus
30 Mar – 13 Apr
5 Jun
4-6 wk
11 May
3 Jul
0 wk
24 May
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
22 Mar – 5 Apr
23 Mar
10-12 wk
14 Jun
5 wk after
Sunflower
Helianthus annuus
3 – 10 May
12 Jun
3-4 wk
31 May
3 Jul
3 wk after
5 Jun
23 Jun
4 wk after
China aster
Callistephus chinensis
5 – 19 Apr
1 Jun
6-8 wk
31 May
13 Jul
3 wk after
23 Jun
3 Jul
6 wk after
Annual phlox
Phlox drummondii
27 Mar – 10 Apr
24 May
6-8 wk
22 May
5 Jul
2 wk after
23 Jun
25 Jun
6 wk after
Hollyhock
Alcea rosea
16 – 30 Mar
6-8 wk
11 May
0 wk
24 May
2 wk after
Alpine delphinium
Delphinium elatum
16 Feb – 16 Mar
18 Apr
8-12 wk
11 May
13 Jun
0 wk
5 Jun
4 wk after
African marigold
Tagetes erecta
5 – 19 Apr
24 May
6-8 wk
31 May
5 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
22 Mar – 5 Apr
22 May
6-8 wk
17 May
3 Jul
1 wk after
23 Jun
23 Jun
6 wk after
Wood sage
Salvia nemorosa
2 – 16 Mar
8 Apr
8-10 wk
11 May
3 Jun
0 wk
5 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
5 Apr – 3 May
10 May
6-10 wk
14 Jun
21 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
11 May
13 Jul
0 wk
12 May
3 Jul
0 wk
Painted tongue
Salpiglossis sinuata
22 Mar – 5 Apr
5 May
8-10 wk
31 May
30 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
16 – 30 Mar
2 May
6-8 wk
11 May
13 Jun
0 wk
24 May
3 Jun
2 wk after