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No frost in sight Last frost normally in 9 days (11 May), but frost-free in the forecast.
Method
Rel. frost
Last spring frost (0°C) 11 May Frost 1 of 10 years · 20 years of data
Frost-free season 173 days 11 May – 31 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)
24 Apr – 8 May
21 Jun
5-7 wk
12 Jun
26 Jul
5 wk after
5 May
16 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
19 Apr – 3 May
3 Jul
4-6 wk
31 May
31 Jul
3 wk after
5 May
21 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
29 Mar – 26 Apr
4 Apr
8-12 wk
21 Jun
6 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
21 Feb – 7 Mar
16 Jun
5-7 wk
11 Apr
21 Jul
4 wk before
28 Apr
11 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
8 – 15 Jun
3-4 wk
6 Jul
8 wk after
Florence Fennel
Foeniculum vulgare
12 – 19 Jun
13 Jun
4-5 wk
17 Jul
10 wk after
21 Jun
1 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
23 – 30 Jun
3-4 wk
21 Jul
10 wk after
Onion
Allium cepa (Cepa-gruppen)
16 Feb – 16 Mar
6 Apr
8-12 wk
11 May
1 Jun
Vid frost
24 May
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
5 May
21 Jun
1 wk before
5 May
11 Jun
1 wk before
Maize
Zea mays
Fleece
24 – 31 May
3-4 wk
21 Jun
6 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
15 – 22 May
10 Jul
3-4 wk
12 Jun
31 Jul
5 wk after
24 May
21 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
28 Apr
1 Jul
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
21 Feb – 7 Mar
16 Jun
5-7 wk
11 Apr
21 Jul
4 wk before
28 Apr
11 Jul
2 wk before
Potato
Solanum tuberosum
4 – 18 Apr
13 Jun
4-6 wk
16 May
11 Jul
1 wk after
16 May
1 Jul
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Feb – 7 Mar
26 Jun
5-7 wk
11 Apr
31 Jul
4 wk before
5 May
21 Jul
1 wk before
Pumpkin
Cucurbita pepo
19 – 26 Jun
3-4 wk
17 Jul
10 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
15 – 22 May
10 Jul
3-4 wk
12 Jun
31 Jul
5 wk after
24 May
21 Jul
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
19 Apr – 3 May
28 Jun
4-6 wk
31 May
26 Jul
3 wk after
Lettuce
Lactuca sativa
4 – 11 Apr
15 Jul
3-4 wk
2 May
5 Aug
1 wk before
5 May
26 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
21 Mar – 4 Apr
28 Jun
4-6 wk
2 May
26 Jul
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
31 Mar – 14 Apr
7 Jun
2-4 wk
28 Apr
21 Jun
2 wk before
28 Apr
11 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
5 May
21 Jun
1 wk before
5 May
11 Jun
1 wk before
Spinach
Spinacia oleracea
24 – 31 Mar
30 Jul
3-4 wk
21 Apr
20 Aug
3 wk before
21 Apr
10 Aug
3 wk before
Sweet potato
Ipomoea batatas
12 – 26 Jun
4-6 wk
24 Jul
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
26 Apr – 10 May
28 Apr
6-8 wk
21 Jun
6 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
8 – 22 Jun
2-4 wk
6 Jul
8 wk after
21 Jun
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
19 Apr – 3 May
28 Jun
4-6 wk
31 May
26 Jul
3 wk after
Garden pea
Pisum sativum
24 – 31 Mar
30 Jun
3-4 wk
21 Apr
21 Jul
3 wk before
5 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
Fleece
25 May – 8 Jun
31 May
4-6 wk
6 Jul
8 wk after
Lemon balm
Melissa officinalis
2 – 16 Mar
26 May
8-10 wk
11 May
21 Jul
Vid frost
6 Jun
11 Jul
4 wk after
Dill
Anethum graveolens
5 May
31 Jul
1 wk before
Wild chives
Allium schoenoprasum
14 – 28 Feb
9 Jun
6-8 wk
11 Apr
21 Jul
4 wk before
5 May
11 Jul
1 wk before
Spearmint
Mentha spicata
27 Jan – 24 Feb
26 May
8-12 wk
21 Apr
21 Jul
3 wk before
6 Jun
11 Jul
4 wk after
Coriander
Coriandrum sativum
24 May
10 Aug
2 wk after
Garden sage
Salvia officinalis
3 – 17 Apr
11 May
8-10 wk
12 Jun
6 Jul
5 wk after
Common thyme
Thymus vulgaris
22 Mar – 5 Apr
16 May
8-10 wk
31 May
11 Jul
3 wk after
Oregano
Origanum vulgare
25 Mar – 8 Apr
30 May
6-8 wk
20 May
11 Jul
1 wk after
6 Jun
1 Jul
4 wk after
Parsley
Petroselinum crispum
24 Feb – 10 Mar
30 May
6-8 wk
21 Apr
11 Jul
3 wk before
5 May
1 Jul
1 wk before
Rosemary
Salvia rosmarinus
6 Mar – 3 Apr
12 Apr
10-14 wk
12 Jun
21 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
Fleece
8 – 15 Jun
3-4 wk
6 Jul
8 wk after
Cornflower
Centaurea cyanus
21 Apr
21 Jul
3 wk before
5 May
11 Jul
1 wk before
Statice
Limonium sinuatum
27 Apr – 11 May
6 May
8-10 wk
6 Jul
8 wk after
Sweet William
Dianthus barbatus
24 Feb – 10 Mar
6-8 wk
21 Apr
3 wk before
16 May
1 wk after
Snow-on-the-mountain
Euphorbia marginata
11 – 25 May
20 May
6-8 wk
6 Jul
8 wk after
24 Jul
11 wk after
Pinnate dahlia
Dahlia × pinnata
4 – 18 May
23 May
6-8 wk
29 Jun
4 Jul
7 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
11 Apr – 9 May
6 Jun
4-8 wk
6 Jun
4 Jul
4 wk after
6 Jun
24 Jun
4 wk after
Foxglove
Digitalis purpurea
10 – 24 Feb
8-10 wk
21 Apr
3 wk before
24 May
2 wk after
Busy lizzie
Impatiens walleriana
24 Apr – 22 May
18 Jun
8-12 wk
17 Jul
13 Aug
10 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 May
30 May
6-8 wk
6 Jul
11 Jul
8 wk after
Hyacinth bean
Dolichos lablab
Season too short
25 May – 8 Jun
4-6 wk
6 Jul
8 wk after
Chinese lantern
Physalis alkekengi
3 – 17 Apr
26 Apr
8-10 wk
12 Jun
21 Jun
5 wk after
Love in a mist
Nigella damascena
5 May
26 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
11 – 25 May
6-8 wk
6 Jul
8 wk after
24 Jul
11 wk after
Purple-top vervain
Verbena bonariensis
20 Mar – 17 Apr
26 Apr
8-12 wk
12 Jun
21 Jun
5 wk after
Cardoon
Cynara cardunculus
13 Apr – 11 May
8-12 wk
6 Jul
8 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
13 Apr – 11 May
23 Apr
8-12 wk
6 Jul
8 wk after
Globe amaranth
Gomphrena globosa
Fleece
11 – 25 May
6-8 wk
6 Jul
8 wk after
Corn poppy
Papaver rhoeas
5 May
11 Jul
1 wk before
Snapdragon
Antirrhinum majus
7 Feb – 7 Mar
16 May
8-12 wk
2 May
11 Jul
1 wk before
16 May
1 Jul
1 wk after
Flossflower
Ageratum houstonianum
8 – 22 May
16 May
8-10 wk
17 Jul
10 wk after
Sweet pea
Lathyrus odoratus
24 Feb – 17 Mar
6 Jun
5-8 wk
21 Apr
11 Jul
3 wk before
Stock
Matthiola incana
7 – 21 Mar
9 Jun
6-8 wk
2 May
21 Jul
1 wk before
24 May
11 Jul
2 wk after
Wormwood
Artemisia absinthium
24 Feb – 10 Mar
10 May
6-8 wk
21 Apr
21 Jun
3 wk before
24 May
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
10 – 24 May
1 Jun
4-6 wk
21 Jun
29 Jun
6 wk after
Garden pansy
Viola × wittrockiana
31 Jan – 14 Feb
26 May
8-10 wk
11 Apr
21 Jul
4 wk before
16 May
11 Jul
1 wk after
Petunia
Petunia
13 Apr – 11 May
6 May
8-12 wk
6 Jul
8 wk after
Sweet Scabious
Scabiosa atropurpurea
17 Apr – 1 May
10 May
6-8 wk
12 Jun
21 Jun
5 wk after
21 Jun
6 wk after
Common zinnia
Zinnia elegans
25 May – 8 Jun
31 May
4-6 wk
6 Jul
8 wk after
Common morning glory
Ipomoea purpurea
Fleece
1 – 15 Jun
7 Jun
3-5 wk
6 Jul
8 wk after
Garden cosmos
Cosmos bipinnatus
25 May – 8 Jun
6 Jun
4-6 wk
6 Jul
8 wk after
21 Jun
24 Jun
6 wk after
Scarlet milkweed
Asclepias curassavica
1 – 29 May
4 May
8-12 wk
24 Jul
11 wk after
Bee balm
Monarda didyma
16 Feb – 16 Mar
26 Apr
8-12 wk
11 May
21 Jun
Vid frost
6 Jun
11 Jun
4 wk after
Yarrow
Achillea millefolium
24 Feb – 10 Mar
10 Apr
6-8 wk
21 Apr
22 May
3 wk before
24 May
2 wk after
Safflower
Carthamus tinctorius
21 Apr
21 Jun
3 wk before
5 May
11 Jun
1 wk before
Iceland poppy
Papaver nudicaule
14 – 28 Feb
30 May
6-8 wk
11 Apr
11 Jul
4 wk before
28 Apr
1 Jul
2 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
13 Jun
4-6 wk
26 May
11 Jul
2 wk after
24 May
1 Jul
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
29 Mar – 12 Apr
12 Apr
10-12 wk
21 Jun
21 Jun
6 wk after
Sunflower
Helianthus annuus
8 – 15 Jun
20 Jun
3-4 wk
6 Jul
11 Jul
8 wk after
6 Jun
1 Jul
4 wk after
China aster
Callistephus chinensis
11 – 25 May
9 Jun
6-8 wk
6 Jul
21 Jul
8 wk after
21 Jun
11 Jul
6 wk after
Annual phlox
Phlox drummondii
26 Apr – 10 May
30 May
6-8 wk
21 Jun
11 Jul
6 wk after
21 Jun
1 Jul
6 wk after
Hollyhock
Alcea rosea
24 Feb – 10 Mar
6-8 wk
21 Apr
3 wk before
24 May
2 wk after
Alpine delphinium
Delphinium elatum
8 Mar – 5 Apr
26 Apr
8-12 wk
31 May
21 Jun
3 wk after
6 Jun
11 Jun
4 wk after
African marigold
Tagetes erecta
11 – 25 May
30 May
6-8 wk
6 Jul
11 Jul
8 wk after
Black-eyed Susan
Rudbeckia hirta
17 Apr – 1 May
30 May
6-8 wk
12 Jun
11 Jul
5 wk after
21 Jun
1 Jul
6 wk after
Wood sage
Salvia nemorosa
11 – 25 Mar
16 Apr
8-10 wk
20 May
11 Jun
1 wk after
6 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
27 Apr – 25 May
17 May
6-10 wk
6 Jul
8 wk after
California goldenpoppy
Eschscholzia californica
5 May
11 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
27 Apr – 11 May
16 May
8-10 wk
6 Jul
11 Jul
8 wk after
Water forget-me-not
Myosotis scorpioides
24 Feb – 10 Mar
10 May
6-8 wk
21 Apr
21 Jun
3 wk before
24 May
11 Jun
2 wk after