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Method
Rel. frost
Last spring frost (0°C) 8 Jun Frost 1 of 10 years · 20 years of data
Frost-free season 126 days 8 Jun – 12 Oct
Probability that frost is over

90% = Half of years are frost-free by this date. More about frost & season →

Custom date
Note: This location has a shorter growing season. Plants marked with Fleece, Greenhouse or Season too short need extra protection or are difficult to grow here.

Vegetables

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