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No frost in sight Last frost normally in 6 days (15 May), but frost-free in the forecast.
Method
Rel. frost
Last spring frost (0°C) 15 May Frost 1 of 4 years · 20 years of data
Frost-free season 140 days 15 May – 2 Oct
Probability that frost is over

75% = 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)
27 Mar – 10 Apr
12 Jun
5-7 wk
15 May
17 Jul
0 wk
16 May
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
3 – 17 Apr
24 Jun
4-6 wk
15 May
22 Jul
0 wk
16 May
12 Jul
0 wk
Chili pepper
Capsicum annuum
Fleece
12 Mar – 9 Apr
6 Apr
8-12 wk
4 Jun
3 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
27 Mar – 10 Apr
7 Jun
5-7 wk
15 May
12 Jul
0 wk
15 May
2 Jul
0 wk
Garden cucumber
Cucumis sativus
21 – 28 May
31 May
3-4 wk
18 Jun
21 Jun
5 wk after
Florence Fennel
Foeniculum vulgare
14 – 21 May
3 Jun
4-5 wk
18 Jun
1 Jul
5 wk after
27 Jun
6 wk after
Butter bean
Phaseolus lunatus
Season too short
28 May – 4 Jun
3-4 wk
25 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
20 Feb – 20 Mar
28 Mar
8-12 wk
15 May
23 May
0 wk
28 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
16 May
12 Jun
0 wk
16 May
2 Jun
0 wk
Maize
Zea mays
7 – 14 May
21 May
3-4 wk
4 Jun
11 Jun
3 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
23 – 30 Apr
1 Jul
3-4 wk
21 May
22 Jul
1 wk after
28 May
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
15 May
2 Jul
0 wk
15 May
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
27 Mar – 10 Apr
7 Jun
5-7 wk
15 May
12 Jul
0 wk
15 May
2 Jul
0 wk
Potato
Solanum tuberosum
13 – 27 Apr
28 May
4-6 wk
25 May
25 Jun
1 wk after
25 May
15 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
27 Mar – 10 Apr
17 Jun
5-7 wk
15 May
22 Jul
0 wk
16 May
12 Jul
0 wk
Pumpkin
Cucurbita pepo
21 – 28 May
15 Jun
3-4 wk
18 Jun
6 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
23 – 30 Apr
12 Jun
3-4 wk
21 May
3 Jul
1 wk after
28 May
23 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
3 – 17 Apr
19 Jun
4-6 wk
15 May
17 Jul
0 wk
Lettuce
Lactuca sativa
17 – 24 Apr
6 Jul
3-4 wk
15 May
27 Jul
0 wk
16 May
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
3 – 17 Apr
19 Jun
4-6 wk
15 May
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
17 Apr – 1 May
29 May
2-4 wk
15 May
12 Jun
0 wk
15 May
2 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
16 May
12 Jun
0 wk
16 May
2 Jun
0 wk
Spinach
Spinacia oleracea
17 – 24 Apr
21 Jul
3-4 wk
15 May
11 Aug
0 wk
12 May
1 Aug
0 wk
Sweet potato
Ipomoea batatas
9 – 23 Jun
4-6 wk
21 Jul
10 wk after
Garden tomato
Solanum lycopersicum
9 – 23 Apr
30 Apr
6-8 wk
4 Jun
11 Jun
3 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
7 – 21 May
17 Jun
2-4 wk
4 Jun
1 Jul
3 wk after
27 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
3 – 17 Apr
19 Jun
4-6 wk
15 May
17 Jul
0 wk
Garden pea
Pisum sativum
17 – 24 Apr
21 Jun
3-4 wk
15 May
12 Jul
0 wk
16 May
2 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
7 – 21 May
24 May
4-6 wk
18 Jun
21 Jun
5 wk after
Lemon balm
Melissa officinalis
6 – 20 Mar
17 May
8-10 wk
15 May
12 Jul
0 wk
9 Jun
2 Jul
4 wk after
Dill
Anethum graveolens
16 May
22 Jul
0 wk
Wild chives
Allium schoenoprasum
20 Mar – 3 Apr
31 May
6-8 wk
15 May
12 Jul
0 wk
16 May
2 Jul
0 wk
Spearmint
Mentha spicata
20 Feb – 20 Mar
17 May
8-12 wk
15 May
12 Jul
0 wk
9 Jun
2 Jul
4 wk after
Coriander
Coriandrum sativum
15 May
11 Aug
0 wk
28 May
1 Aug
2 wk after
Garden sage
Salvia officinalis
12 – 26 Mar
2 May
8-10 wk
21 May
27 Jun
1 wk after
Common thyme
Thymus vulgaris
6 – 20 Mar
7 May
8-10 wk
15 May
2 Jul
0 wk
Oregano
Origanum vulgare
20 Mar – 3 Apr
21 May
6-8 wk
15 May
2 Jul
0 wk
9 Jun
22 Jun
4 wk after
Parsley
Petroselinum crispum
20 Mar – 3 Apr
21 May
6-8 wk
15 May
2 Jul
0 wk
16 May
22 Jun
0 wk
Rosemary
Salvia rosmarinus
12 Feb – 12 Mar
3 Apr
10-14 wk
21 May
12 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
21 – 28 May
31 May
3-4 wk
18 Jun
21 Jun
5 wk after
Cornflower
Centaurea cyanus
15 May
12 Jul
0 wk
16 May
2 Jul
0 wk
Statice
Limonium sinuatum
26 Mar – 9 Apr
3 May
8-10 wk
4 Jun
28 Jun
3 wk after
Sweet William
Dianthus barbatus
20 Mar – 3 Apr
6-8 wk
15 May
0 wk
25 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
9 – 23 Apr
17 May
6-8 wk
4 Jun
28 Jun
3 wk after
21 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
4 – 18 Apr
18 May
6-8 wk
30 May
29 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
14 Apr – 12 May
1 Jun
4-8 wk
9 Jun
29 Jun
4 wk after
9 Jun
19 Jun
4 wk after
Foxglove
Digitalis purpurea
6 – 20 Mar
8-10 wk
15 May
0 wk
28 May
2 wk after
Busy lizzie
Impatiens walleriana
26 Mar – 23 Apr
19 Jun
8-12 wk
18 Jun
14 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
9 – 23 Apr
27 May
6-8 wk
4 Jun
8 Jul
3 wk after
Hyacinth bean
Dolichos lablab
Greenhouse
23 Apr – 7 May
2 May
4-6 wk
4 Jun
3 wk after
Chinese lantern
Physalis alkekengi
12 – 26 Mar
17 Apr
8-10 wk
21 May
12 Jun
1 wk after
Love in a mist
Nigella damascena
15 May
27 Jun
0 wk
16 May
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
9 – 23 Apr
7 May
6-8 wk
4 Jun
18 Jun
3 wk after
21 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
26 Feb – 26 Mar
17 Apr
8-12 wk
21 May
12 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
3 – 31 Mar
18 Mar
8-12 wk
26 May
2 wk after
Regal-foxtail
Ptilotus nobilis
26 Mar – 23 Apr
16 Apr
8-12 wk
18 Jun
5 wk after
Globe amaranth
Gomphrena globosa
23 Apr – 7 May
30 Apr
6-8 wk
18 Jun
5 wk after
Corn poppy
Papaver rhoeas
15 May
12 Jul
0 wk
16 May
2 Jul
0 wk
Snapdragon
Antirrhinum majus
20 Feb – 20 Mar
7 May
8-12 wk
15 May
2 Jul
0 wk
25 May
22 Jun
1 wk after
Flossflower
Ageratum houstonianum
9 – 23 Apr
13 May
8-10 wk
18 Jun
8 Jul
5 wk after
Sweet pea
Lathyrus odoratus
20 Mar – 10 Apr
28 May
5-8 wk
15 May
2 Jul
0 wk
Stock
Matthiola incana
20 Mar – 3 Apr
31 May
6-8 wk
15 May
12 Jul
0 wk
28 May
2 Jul
2 wk after
Wormwood
Artemisia absinthium
20 Mar – 3 Apr
1 May
6-8 wk
15 May
12 Jun
0 wk
28 May
2 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
23 Apr – 7 May
17 May
4-6 wk
4 Jun
14 Jun
3 wk after
Garden pansy
Viola × wittrockiana
6 – 20 Mar
17 May
8-10 wk
15 May
12 Jul
0 wk
25 May
2 Jul
1 wk after
Petunia
Petunia
12 Mar – 9 Apr
3 May
8-12 wk
4 Jun
28 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
26 Mar – 9 Apr
1 May
6-8 wk
21 May
12 Jun
1 wk after
27 Jun
6 wk after
Common zinnia
Zinnia elegans
23 Apr – 7 May
1 Jun
4-6 wk
4 Jun
29 Jun
3 wk after
Common morning glory
Ipomoea purpurea
14 – 28 May
31 May
3-5 wk
18 Jun
21 Jun
5 wk after
Garden cosmos
Cosmos bipinnatus
23 Apr – 7 May
1 Jun
4-6 wk
4 Jun
29 Jun
3 wk after
27 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
7 Apr – 5 May
16 May
8-12 wk
30 Jun
11 Jul
7 wk after
Bee balm
Monarda didyma
20 Feb – 20 Mar
17 Apr
8-12 wk
15 May
12 Jun
0 wk
9 Jun
4 wk after
Yarrow
Achillea millefolium
20 Mar – 3 Apr
1 Apr
6-8 wk
15 May
0 wk
28 May
2 wk after
Safflower
Carthamus tinctorius
15 May
12 Jun
0 wk
16 May
2 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
20 Mar – 3 Apr
21 May
6-8 wk
15 May
2 Jul
0 wk
29 Apr
22 Jun
2 wk before
Bishop's flower
Ammi majus
3 – 17 Apr
4 Jun
4-6 wk
15 May
2 Jul
0 wk
28 May
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
12 – 26 Mar
31 Mar
10-12 wk
4 Jun
9 Jun
3 wk after
Sunflower
Helianthus annuus
7 – 14 May
11 Jun
3-4 wk
4 Jun
2 Jul
3 wk after
9 Jun
22 Jun
4 wk after
China aster
Callistephus chinensis
9 – 23 Apr
31 May
6-8 wk
4 Jun
12 Jul
3 wk after
27 Jun
2 Jul
6 wk after
Annual phlox
Phlox drummondii
31 Mar – 14 Apr
27 May
6-8 wk
26 May
8 Jul
2 wk after
27 Jun
28 Jun
6 wk after
Hollyhock
Alcea rosea
20 Mar – 3 Apr
6-8 wk
15 May
0 wk
28 May
2 wk after
Alpine delphinium
Delphinium elatum
20 Feb – 20 Mar
17 Apr
8-12 wk
15 May
12 Jun
0 wk
9 Jun
4 wk after
African marigold
Tagetes erecta
9 – 23 Apr
27 May
6-8 wk
4 Jun
8 Jul
3 wk after
Black-eyed Susan
Rudbeckia hirta
26 Mar – 9 Apr
21 May
6-8 wk
21 May
2 Jul
1 wk after
27 Jun
6 wk after
Wood sage
Salvia nemorosa
6 – 20 Mar
7 Apr
8-10 wk
15 May
2 Jun
0 wk
9 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
9 Apr – 7 May
10 May
6-10 wk
18 Jun
21 Jun
5 wk after
California goldenpoppy
Eschscholzia californica
15 May
12 Jul
0 wk
16 May
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
26 Mar – 9 Apr
6 May
8-10 wk
4 Jun
1 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
20 Mar – 3 Apr
1 May
6-8 wk
15 May
12 Jun
0 wk
28 May
2 Jun
2 wk after