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No frost in sight Last frost normally in 8 days (17 May), but frost-free in the forecast.
Method
Rel. frost
Last spring frost (0°C) 17 May Frost 1 of 10 years · 20 years of data
Frost-free season 149 days 17 May – 13 Oct
Probability that frost is over

90% = 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)
29 Mar – 12 Apr
19 Jun
5-7 wk
17 May
24 Jul
0 wk
10 May
14 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
5 – 19 Apr
1 Jul
4-6 wk
17 May
29 Jul
0 wk
10 May
19 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
5 Mar – 2 Apr
27 Mar
8-12 wk
28 May
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
29 Mar – 12 Apr
14 Jun
5-7 wk
17 May
19 Jul
0 wk
5 May
9 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
8 – 15 May
21 May
3-4 wk
5 Jun
11 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
18 – 25 May
11 Jun
4-5 wk
22 Jun
9 Jul
5 wk after
22 Jun
29 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
1 – 8 Jun
3-4 wk
29 Jun
6 wk after
Onion
Allium cepa (Cepa-gruppen)
22 Feb – 22 Mar
4 Apr
8-12 wk
17 May
30 May
0 wk
27 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
10 May
19 Jun
1 wk before
10 May
9 Jun
1 wk before
Maize
Zea mays
Fleece
30 Apr – 7 May
11 May
3-4 wk
28 May
1 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
25 Apr – 2 May
8 Jul
3-4 wk
23 May
29 Jul
1 wk after
27 May
19 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
17 May
9 Jul
0 wk
5 May
29 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
29 Mar – 12 Apr
14 Jun
5-7 wk
17 May
19 Jul
0 wk
5 May
9 Jul
2 wk before
Potato
Solanum tuberosum
10 – 24 Apr
11 Jun
4-6 wk
22 May
9 Jul
1 wk after
22 May
29 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
29 Mar – 12 Apr
24 Jun
5-7 wk
17 May
29 Jul
0 wk
10 May
19 Jul
1 wk before
Pumpkin
Cucurbita pepo
25 May – 1 Jun
26 May
3-4 wk
22 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
25 Apr – 2 May
1 Jul
3-4 wk
23 May
22 Jul
1 wk after
27 May
12 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
5 – 19 Apr
26 Jun
4-6 wk
17 May
24 Jul
0 wk
Lettuce
Lactuca sativa
19 – 26 Apr
13 Jul
3-4 wk
17 May
3 Aug
0 wk
10 May
24 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
5 – 19 Apr
26 Jun
4-6 wk
17 May
24 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
7 – 21 Apr
5 Jun
2-4 wk
5 May
19 Jun
2 wk before
5 May
9 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
10 May
19 Jun
1 wk before
10 May
9 Jun
1 wk before
Spinach
Spinacia oleracea
19 – 26 Apr
28 Jul
3-4 wk
17 May
18 Aug
0 wk
29 Apr
8 Aug
3 wk before
Sweet potato
Ipomoea batatas
13 – 27 Jun
4-6 wk
25 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
2 – 16 Apr
20 Apr
6-8 wk
28 May
1 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
8 – 22 May
28 May
2-4 wk
5 Jun
11 Jun
3 wk after
22 Jun
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
5 – 19 Apr
26 Jun
4-6 wk
17 May
24 Jul
0 wk
Garden pea
Pisum sativum
19 – 26 Apr
28 Jun
3-4 wk
17 May
19 Jul
0 wk
10 May
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
Fleece
24 Apr – 8 May
10 May
4-6 wk
5 Jun
7 Jun
3 wk after
Lemon balm
Melissa officinalis
8 – 22 Mar
24 May
8-10 wk
17 May
19 Jul
0 wk
7 Jun
9 Jul
3 wk after
Dill
Anethum graveolens
10 May
29 Jul
1 wk before
Wild chives
Allium schoenoprasum
22 Mar – 5 Apr
7 Jun
6-8 wk
17 May
19 Jul
0 wk
10 May
9 Jul
1 wk before
Spearmint
Mentha spicata
22 Feb – 22 Mar
24 May
8-12 wk
17 May
19 Jul
0 wk
7 Jun
9 Jul
3 wk after
Coriander
Coriandrum sativum
17 May
18 Aug
0 wk
27 May
8 Aug
1 wk after
Garden sage
Salvia officinalis
14 – 28 Mar
9 May
8-10 wk
23 May
4 Jul
1 wk after
Common thyme
Thymus vulgaris
8 – 22 Mar
14 May
8-10 wk
17 May
9 Jul
0 wk
Oregano
Origanum vulgare
22 Mar – 5 Apr
28 May
6-8 wk
17 May
9 Jul
0 wk
7 Jun
29 Jun
3 wk after
Parsley
Petroselinum crispum
22 Mar – 5 Apr
28 May
6-8 wk
17 May
9 Jul
0 wk
10 May
29 Jun
1 wk before
Rosemary
Salvia rosmarinus
14 Feb – 14 Mar
10 Apr
10-14 wk
23 May
19 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
Fleece
8 – 15 May
17 May
3-4 wk
5 Jun
7 Jun
3 wk after
Cornflower
Centaurea cyanus
17 May
19 Jul
0 wk
10 May
9 Jul
1 wk before
Statice
Limonium sinuatum
27 Mar – 10 Apr
14 Apr
8-10 wk
5 Jun
9 Jun
3 wk after
Sweet William
Dianthus barbatus
22 Mar – 5 Apr
6-8 wk
17 May
0 wk
22 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
10 – 24 Apr
28 Apr
6-8 wk
5 Jun
9 Jun
3 wk after
25 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
5 – 19 Apr
5 May
6-8 wk
31 May
16 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
12 Apr – 10 May
19 May
4-8 wk
7 Jun
16 Jun
3 wk after
7 Jun
3 wk after
Foxglove
Digitalis purpurea
8 – 22 Mar
8-10 wk
17 May
0 wk
27 May
1 wk after
Busy lizzie
Impatiens walleriana
30 Mar – 27 Apr
28 May
8-12 wk
22 Jun
23 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
10 – 24 Apr
8 May
6-8 wk
5 Jun
19 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
24 Apr – 8 May
4-6 wk
5 Jun
3 wk after
Chinese lantern
Physalis alkekengi
14 – 28 Mar
24 Apr
8-10 wk
23 May
19 Jun
1 wk after
Love in a mist
Nigella damascena
17 May
4 Jul
0 wk
10 May
24 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
10 – 24 Apr
18 Apr
6-8 wk
5 Jun
3 wk after
25 Jul
10 wk after
Purple-top vervain
Verbena bonariensis
28 Feb – 28 Mar
24 Apr
8-12 wk
23 May
19 Jun
1 wk after
Cardoon
Cynara cardunculus
13 Mar – 10 Apr
25 Mar
8-12 wk
5 Jun
3 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
13 Mar – 10 Apr
2 Apr
8-12 wk
5 Jun
3 wk after
Globe amaranth
Gomphrena globosa
Fleece
10 – 24 Apr
16 Apr
6-8 wk
5 Jun
3 wk after
Corn poppy
Papaver rhoeas
17 May
19 Jul
0 wk
10 May
9 Jul
1 wk before
Snapdragon
Antirrhinum majus
22 Feb – 22 Mar
14 May
8-12 wk
17 May
9 Jul
0 wk
22 May
29 Jun
1 wk after
Flossflower
Ageratum houstonianum
13 – 27 Apr
24 Apr
8-10 wk
22 Jun
5 wk after
Sweet pea
Lathyrus odoratus
22 Mar – 12 Apr
4 Jun
5-8 wk
17 May
9 Jul
0 wk
Stock
Matthiola incana
22 Mar – 5 Apr
7 Jun
6-8 wk
17 May
19 Jul
0 wk
27 May
9 Jul
1 wk after
Wormwood
Artemisia absinthium
22 Mar – 5 Apr
8 May
6-8 wk
17 May
19 Jun
0 wk
27 May
9 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
24 Apr – 8 May
25 Apr
4-6 wk
5 Jun
3 wk after
Garden pansy
Viola × wittrockiana
8 – 22 Mar
24 May
8-10 wk
17 May
19 Jul
0 wk
22 May
9 Jul
1 wk after
Petunia
Petunia
13 Mar – 10 Apr
14 Apr
8-12 wk
5 Jun
9 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
28 Mar – 11 Apr
8 May
6-8 wk
23 May
19 Jun
1 wk after
22 Jun
5 wk after
Common zinnia
Zinnia elegans
24 Apr – 8 May
10 May
4-6 wk
5 Jun
7 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
1 – 15 May
17 May
3-5 wk
5 Jun
7 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
24 Apr – 8 May
19 May
4-6 wk
5 Jun
16 Jun
3 wk after
22 Jun
5 wk after
Scarlet milkweed
Asclepias curassavica
11 Apr – 9 May
26 Apr
8-12 wk
4 Jul
7 wk after
Bee balm
Monarda didyma
22 Feb – 22 Mar
24 Apr
8-12 wk
17 May
19 Jun
0 wk
7 Jun
9 Jun
3 wk after
Yarrow
Achillea millefolium
22 Mar – 5 Apr
8 Apr
6-8 wk
17 May
20 May
0 wk
27 May
1 wk after
Safflower
Carthamus tinctorius
17 May
19 Jun
0 wk
10 May
9 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
22 Mar – 5 Apr
28 May
6-8 wk
17 May
9 Jul
0 wk
8 Apr
29 Jun
6 wk before
Bishop's flower
Ammi majus
5 – 19 Apr
11 Jun
4-6 wk
17 May
9 Jul
0 wk
27 May
29 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
13 – 27 Mar
18 Mar
10-12 wk
5 Jun
3 wk after
Sunflower
Helianthus annuus
8 – 15 May
18 Jun
3-4 wk
5 Jun
9 Jul
3 wk after
7 Jun
29 Jun
3 wk after
China aster
Callistephus chinensis
10 – 24 Apr
7 Jun
6-8 wk
5 Jun
19 Jul
3 wk after
22 Jun
9 Jul
5 wk after
Annual phlox
Phlox drummondii
2 – 16 Apr
8 May
6-8 wk
28 May
19 Jun
2 wk after
22 Jun
5 wk after
Hollyhock
Alcea rosea
22 Mar – 5 Apr
6-8 wk
17 May
0 wk
27 May
1 wk after
Alpine delphinium
Delphinium elatum
22 Feb – 22 Mar
24 Apr
8-12 wk
17 May
19 Jun
0 wk
7 Jun
9 Jun
3 wk after
African marigold
Tagetes erecta
10 – 24 Apr
8 May
6-8 wk
5 Jun
19 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
28 Mar – 11 Apr
28 May
6-8 wk
23 May
9 Jul
1 wk after
22 Jun
29 Jun
5 wk after
Wood sage
Salvia nemorosa
8 – 22 Mar
14 Apr
8-10 wk
17 May
9 Jun
0 wk
7 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
27 Mar – 24 Apr
26 Apr
6-10 wk
5 Jun
7 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
17 May
19 Jul
0 wk
10 May
9 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
27 Mar – 10 Apr
14 May
8-10 wk
5 Jun
9 Jul
3 wk after
Water forget-me-not
Myosotis scorpioides
22 Mar – 5 Apr
8 May
6-8 wk
17 May
19 Jun
0 wk
27 May
9 Jun
1 wk after