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No frost in sight Last frost normally in 4 days (13 May), but frost-free in the forecast.
Method
Rel. frost
Last spring frost (0°C) 13 May Frost 1 of 4 years · 20 years of data
Frost-free season 158 days 13 May – 18 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)
25 Mar – 8 Apr
21 Jun
5-7 wk
13 May
26 Jul
0 wk
7 May
16 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
1 – 15 Apr
3 Jul
4-6 wk
13 May
31 Jul
0 wk
7 May
21 Jul
1 wk before
Chili pepper
Capsicum annuum
31 Mar – 28 Apr
15 Apr
8-12 wk
23 Jun
6 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
25 Mar – 8 Apr
16 Jun
5-7 wk
13 May
21 Jul
0 wk
30 Apr
11 Jul
2 wk before
Garden cucumber
Cucumis sativus
26 May – 2 Jun
19 Jun
3-4 wk
23 Jun
10 Jul
6 wk after
Florence Fennel
Foeniculum vulgare
19 – 26 May
13 Jun
4-5 wk
23 Jun
11 Jul
6 wk after
23 Jun
1 Jul
6 wk after
Butter bean
Phaseolus lunatus
Greenhouse
5 – 12 Jun
9 Jun
3-4 wk
3 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
18 Feb – 18 Mar
6 Apr
8-12 wk
13 May
1 Jun
0 wk
26 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
7 May
21 Jun
1 wk before
7 May
11 Jun
1 wk before
Maize
Zea mays
12 – 19 May
9 Jun
3-4 wk
9 Jun
30 Jun
4 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
15 – 22 Apr
10 Jul
3-4 wk
13 May
31 Jul
0 wk
26 May
21 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
13 May
11 Jul
0 wk
30 Apr
1 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
25 Mar – 8 Apr
16 Jun
5-7 wk
13 May
21 Jul
0 wk
30 Apr
11 Jul
2 wk before
Potato
Solanum tuberosum
6 – 20 Apr
13 Jun
4-6 wk
18 May
11 Jul
1 wk after
18 May
1 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
25 Mar – 8 Apr
26 Jun
5-7 wk
13 May
31 Jul
0 wk
7 May
21 Jul
1 wk before
Pumpkin
Cucurbita pepo
26 May – 2 Jun
6 Jul
3-4 wk
23 Jun
27 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
15 – 22 Apr
2 Jul
3-4 wk
13 May
23 Jul
0 wk
26 May
13 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
1 – 15 Apr
28 Jun
4-6 wk
13 May
26 Jul
0 wk
Lettuce
Lactuca sativa
15 – 22 Apr
15 Jul
3-4 wk
13 May
5 Aug
0 wk
7 May
26 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
1 – 15 Apr
28 Jun
4-6 wk
13 May
26 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
2 – 16 Apr
7 Jun
2-4 wk
30 Apr
21 Jun
2 wk before
30 Apr
11 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
7 May
21 Jun
1 wk before
7 May
11 Jun
1 wk before
Spinach
Spinacia oleracea
15 – 22 Apr
30 Jul
3-4 wk
13 May
20 Aug
0 wk
23 Apr
10 Aug
3 wk before
Sweet potato
Ipomoea batatas
14 – 28 Jun
4-6 wk
26 Jul
11 wk after
Garden tomato
Solanum lycopersicum
14 – 28 Apr
19 May
6-8 wk
9 Jun
30 Jun
4 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
12 – 26 May
8 Jul
2-4 wk
9 Jun
22 Jul
4 wk after
23 Jun
12 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
1 – 15 Apr
28 Jun
4-6 wk
13 May
26 Jul
0 wk
Garden pea
Pisum sativum
15 – 22 Apr
30 Jun
3-4 wk
13 May
21 Jul
0 wk
7 May
11 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
12 – 26 May
14 Jun
4-6 wk
23 Jun
12 Jul
6 wk after
Lemon balm
Melissa officinalis
4 – 18 Mar
26 May
8-10 wk
13 May
21 Jul
0 wk
8 Jun
11 Jul
4 wk after
Dill
Anethum graveolens
7 May
31 Jul
1 wk before
Wild chives
Allium schoenoprasum
18 Mar – 1 Apr
9 Jun
6-8 wk
13 May
21 Jul
0 wk
7 May
11 Jul
1 wk before
Spearmint
Mentha spicata
18 Feb – 18 Mar
26 May
8-12 wk
13 May
21 Jul
0 wk
8 Jun
11 Jul
4 wk after
Coriander
Coriandrum sativum
13 May
20 Aug
0 wk
26 May
10 Aug
2 wk after
Garden sage
Salvia officinalis
4 – 18 Mar
11 May
8-10 wk
13 May
6 Jul
0 wk
Common thyme
Thymus vulgaris
4 – 18 Mar
16 May
8-10 wk
13 May
11 Jul
0 wk
Oregano
Origanum vulgare
18 Mar – 1 Apr
30 May
6-8 wk
13 May
11 Jul
0 wk
8 Jun
1 Jul
4 wk after
Parsley
Petroselinum crispum
18 Mar – 1 Apr
30 May
6-8 wk
13 May
11 Jul
0 wk
7 May
1 Jul
1 wk before
Rosemary
Salvia rosmarinus
4 Feb – 4 Mar
12 Apr
10-14 wk
13 May
21 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
26 May – 2 Jun
21 Jun
3-4 wk
23 Jun
12 Jul
6 wk after
Cornflower
Centaurea cyanus
13 May
21 Jul
0 wk
7 May
11 Jul
1 wk before
Statice
Limonium sinuatum
31 Mar – 14 Apr
16 May
8-10 wk
9 Jun
11 Jul
4 wk after
Sweet William
Dianthus barbatus
18 Mar – 1 Apr
6-8 wk
13 May
0 wk
18 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
14 – 28 Apr
30 May
6-8 wk
9 Jun
11 Jul
4 wk after
26 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
30 May
6-8 wk
4 Jun
11 Jul
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
13 Apr – 11 May
13 Jun
4-8 wk
8 Jun
11 Jul
4 wk after
8 Jun
1 Jul
4 wk after
Foxglove
Digitalis purpurea
4 – 18 Mar
8-10 wk
13 May
0 wk
26 May
2 wk after
Busy lizzie
Impatiens walleriana
31 Mar – 28 Apr
10 Jul
8-12 wk
23 Jun
4 Sep
6 wk after
Creeping zinnia
Sanvitalia procumbens
14 – 28 Apr
9 Jun
6-8 wk
9 Jun
21 Jul
4 wk after
Hyacinth bean
Dolichos lablab
Fleece
12 – 26 May
15 May
4-6 wk
23 Jun
6 wk after
Chinese lantern
Physalis alkekengi
4 – 18 Mar
26 Apr
8-10 wk
13 May
21 Jun
0 wk
Love in a mist
Nigella damascena
13 May
6 Jul
0 wk
7 May
26 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
14 – 28 Apr
20 May
6-8 wk
9 Jun
1 Jul
4 wk after
26 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
18 Feb – 18 Mar
26 Apr
8-12 wk
13 May
21 Jun
0 wk
Cardoon
Cynara cardunculus
17 Mar – 14 Apr
27 Mar
8-12 wk
9 Jun
4 wk after
Regal-foxtail
Ptilotus nobilis
31 Mar – 28 Apr
7 May
8-12 wk
23 Jun
2 Jul
6 wk after
Globe amaranth
Gomphrena globosa
28 Apr – 12 May
21 May
6-8 wk
23 Jun
2 Jul
6 wk after
Corn poppy
Papaver rhoeas
13 May
21 Jul
0 wk
7 May
11 Jul
1 wk before
Snapdragon
Antirrhinum majus
18 Feb – 18 Mar
16 May
8-12 wk
13 May
11 Jul
0 wk
18 May
1 Jul
1 wk after
Flossflower
Ageratum houstonianum
14 – 28 Apr
26 May
8-10 wk
23 Jun
21 Jul
6 wk after
Sweet pea
Lathyrus odoratus
18 Mar – 8 Apr
6 Jun
5-8 wk
13 May
11 Jul
0 wk
Stock
Matthiola incana
18 Mar – 1 Apr
9 Jun
6-8 wk
13 May
21 Jul
0 wk
26 May
11 Jul
2 wk after
Wormwood
Artemisia absinthium
18 Mar – 1 Apr
10 May
6-8 wk
13 May
21 Jun
0 wk
26 May
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
12 – 26 May
30 May
4-6 wk
23 Jun
27 Jun
6 wk after
Garden pansy
Viola × wittrockiana
4 – 18 Mar
26 May
8-10 wk
13 May
21 Jul
0 wk
18 May
11 Jul
1 wk after
Petunia
Petunia
17 Mar – 14 Apr
16 May
8-12 wk
9 Jun
11 Jul
4 wk after
Sweet Scabious
Scabiosa atropurpurea
18 Mar – 1 Apr
10 May
6-8 wk
13 May
21 Jun
0 wk
23 Jun
6 wk after
Common zinnia
Zinnia elegans
28 Apr – 12 May
22 Jun
4-6 wk
9 Jun
20 Jul
4 wk after
Common morning glory
Ipomoea purpurea
19 May – 2 Jun
21 Jun
3-5 wk
23 Jun
12 Jul
6 wk after
Garden cosmos
Cosmos bipinnatus
28 Apr – 12 May
13 Jun
4-6 wk
9 Jun
11 Jul
4 wk after
23 Jun
1 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
18 Apr – 16 May
6 Jun
8-12 wk
11 Jul
1 Aug
8 wk after
Bee balm
Monarda didyma
18 Feb – 18 Mar
26 Apr
8-12 wk
13 May
21 Jun
0 wk
8 Jun
11 Jun
4 wk after
Yarrow
Achillea millefolium
18 Mar – 1 Apr
10 Apr
6-8 wk
13 May
22 May
0 wk
26 May
2 wk after
Safflower
Carthamus tinctorius
13 May
21 Jun
0 wk
7 May
11 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
18 Mar – 1 Apr
30 May
6-8 wk
13 May
11 Jul
0 wk
28 Mar
1 Jul
7 wk before
Bishop's flower
Ammi majus
1 – 15 Apr
13 Jun
4-6 wk
13 May
11 Jul
0 wk
26 May
1 Jul
2 wk after
Drumsticks
Pycnosorus globosus
31 Mar – 14 Apr
11 Apr
10-12 wk
23 Jun
6 wk after
Sunflower
Helianthus annuus
12 – 19 May
20 Jun
3-4 wk
9 Jun
11 Jul
4 wk after
8 Jun
1 Jul
4 wk after
China aster
Callistephus chinensis
14 – 28 Apr
9 Jun
6-8 wk
9 Jun
21 Jul
4 wk after
23 Jun
11 Jul
6 wk after
Annual phlox
Phlox drummondii
5 – 19 Apr
9 Jun
6-8 wk
31 May
21 Jul
3 wk after
23 Jun
11 Jul
6 wk after
Hollyhock
Alcea rosea
18 Mar – 1 Apr
6-8 wk
13 May
0 wk
26 May
2 wk after
Alpine delphinium
Delphinium elatum
18 Feb – 18 Mar
26 Apr
8-12 wk
13 May
21 Jun
0 wk
8 Jun
11 Jun
4 wk after
African marigold
Tagetes erecta
14 – 28 Apr
9 Jun
6-8 wk
9 Jun
21 Jul
4 wk after
Black-eyed Susan
Rudbeckia hirta
18 Mar – 1 Apr
30 May
6-8 wk
13 May
11 Jul
0 wk
23 Jun
1 Jul
6 wk after
Wood sage
Salvia nemorosa
4 – 18 Mar
16 Apr
8-10 wk
13 May
11 Jun
0 wk
8 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
14 Apr – 12 May
31 May
6-10 wk
23 Jun
12 Jul
6 wk after
California goldenpoppy
Eschscholzia californica
13 May
21 Jul
0 wk
7 May
11 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
31 Mar – 14 Apr
16 May
8-10 wk
9 Jun
11 Jul
4 wk after
Water forget-me-not
Myosotis scorpioides
18 Mar – 1 Apr
10 May
6-8 wk
13 May
21 Jun
0 wk
26 May
11 Jun
2 wk after