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Method
Rel. frost
Last spring frost (0°C) 26 May Frost 1 of 4 years · 20 years of data
Frost-free season 133 days 26 May – 6 Oct
Probability that frost is over

75% = 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)
7 – 21 Apr
16 Jun
5-7 wk
26 May
21 Jul
0 wk
30 May
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
28 Jun
4-6 wk
26 May
26 Jul
0 wk
30 May
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
9 Mar – 6 Apr
4 Apr
8-12 wk
1 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
7 – 21 Apr
11 Jun
5-7 wk
26 May
16 Jul
0 wk
26 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
11 – 18 May
29 May
3-4 wk
8 Jun
19 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
23 – 30 May
8 Jun
4-5 wk
27 Jun
6 Jul
5 wk after
14 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
6 – 13 Jun
3-4 wk
4 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
3 – 31 Mar
29 Mar
8-12 wk
26 May
0 wk
5 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
1 wk after
30 May
1 wk after
Maize
Zea mays
Fleece
4 – 11 May
19 May
3-4 wk
1 Jun
9 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Apr – 7 May
5 Jul
3-4 wk
28 May
26 Jul
0 wk
16 Jun
16 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
6 Jul
0 wk
26 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Apr
11 Jun
5-7 wk
26 May
16 Jul
0 wk
26 May
6 Jul
0 wk
Potato
Solanum tuberosum
30 Apr – 14 May
12 May
4-6 wk
11 Jun
2 wk after
11 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
21 Jun
5-7 wk
26 May
26 Jul
0 wk
30 May
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
30 May – 6 Jun
3 Jun
3-4 wk
27 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
30 Apr – 7 May
11 May
3-4 wk
28 May
1 Jun
0 wk
16 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
23 Jun
4-6 wk
26 May
21 Jul
0 wk
Lettuce
Lactuca sativa
28 Apr – 5 May
10 Jul
3-4 wk
26 May
31 Jul
0 wk
30 May
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
14 – 28 Apr
23 Jun
4-6 wk
26 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
28 Apr – 12 May
24 May
2-4 wk
26 May
7 Jun
0 wk
26 May
28 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 May
1 wk after
30 May
1 wk after
Spinach
Spinacia oleracea
28 Apr – 5 May
25 Jul
3-4 wk
26 May
15 Aug
0 wk
22 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
27 Jun – 11 Jul
4-6 wk
8 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
6 – 20 Apr
28 Apr
6-8 wk
1 Jun
9 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
11 – 25 May
5 Jun
2-4 wk
8 Jun
19 Jun
2 wk after
14 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
23 Jun
4-6 wk
26 May
21 Jul
0 wk
Garden pea
Pisum sativum
28 Apr – 5 May
25 Jun
3-4 wk
26 May
16 Jul
0 wk
30 May
6 Jul
1 wk after

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Fleece
27 Apr – 11 May
28 May
4-6 wk
8 Jun
25 Jun
2 wk after
Lemon balm
Melissa officinalis
17 – 31 Mar
21 May
8-10 wk
26 May
16 Jul
0 wk
30 Jun
6 Jul
5 wk after
Dill
Anethum graveolens
30 May
26 Jul
1 wk after
Wild chives
Allium schoenoprasum
31 Mar – 14 Apr
4 Jun
6-8 wk
26 May
16 Jul
0 wk
30 May
6 Jul
1 wk after
Spearmint
Mentha spicata
3 – 31 Mar
21 May
8-12 wk
26 May
16 Jul
0 wk
30 Jun
6 Jul
5 wk after
Coriander
Coriandrum sativum
26 May
15 Aug
0 wk
16 Jun
5 Aug
3 wk after
Garden sage
Salvia officinalis
19 Mar – 2 Apr
6 May
8-10 wk
28 May
1 Jul
0 wk
Common thyme
Thymus vulgaris
17 – 31 Mar
11 May
8-10 wk
26 May
6 Jul
0 wk
Oregano
Origanum vulgare
31 Mar – 14 Apr
25 May
6-8 wk
26 May
6 Jul
0 wk
30 Jun
5 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
25 May
6-8 wk
26 May
6 Jul
0 wk
30 May
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
19 Feb – 19 Mar
7 Apr
10-14 wk
28 May
16 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
Fleece
11 – 18 May
4 Jun
3-4 wk
8 Jun
25 Jun
2 wk after
Cornflower
Centaurea cyanus
26 May
16 Jul
0 wk
30 May
6 Jul
1 wk after
Statice
Limonium sinuatum
30 Mar – 13 Apr
26 Apr
8-10 wk
8 Jun
21 Jun
2 wk after
Sweet William
Dianthus barbatus
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
11 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
13 – 27 Apr
10 May
6-8 wk
8 Jun
21 Jun
2 wk after
8 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
11 – 25 Apr
19 May
6-8 wk
6 Jun
30 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
21 Apr – 19 May
8 Jun
4-8 wk
16 Jun
6 Jul
3 wk after
16 Jun
26 Jun
3 wk after
Foxglove
Digitalis purpurea
17 – 31 Mar
8-10 wk
26 May
0 wk
16 Jun
3 wk after
Busy lizzie
Impatiens walleriana
4 Apr – 2 May
15 Jun
8-12 wk
27 Jun
10 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
13 – 27 Apr
20 May
6-8 wk
8 Jun
1 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
27 Apr – 11 May
28 Apr
4-6 wk
8 Jun
2 wk after
Chinese lantern
Physalis alkekengi
19 Mar – 2 Apr
21 Apr
8-10 wk
28 May
16 Jun
0 wk
Love in a mist
Nigella damascena
26 May
1 Jul
0 wk
30 May
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
13 – 27 Apr
30 Apr
6-8 wk
8 Jun
11 Jun
2 wk after
8 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
5 Mar – 2 Apr
21 Apr
8-12 wk
28 May
16 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
9 Mar – 6 Apr
22 Mar
8-12 wk
1 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
16 Mar – 13 Apr
20 Apr
8-12 wk
8 Jun
15 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
13 – 27 Apr
4 May
6-8 wk
8 Jun
15 Jun
2 wk after
Corn poppy
Papaver rhoeas
26 May
16 Jul
0 wk
30 May
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
3 – 31 Mar
11 May
8-12 wk
26 May
6 Jul
0 wk
11 Jun
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
18 Apr – 2 May
6 May
8-10 wk
27 Jun
1 Jul
5 wk after
Sweet pea
Lathyrus odoratus
31 Mar – 21 Apr
1 Jun
5-8 wk
26 May
6 Jul
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
4 Jun
6-8 wk
26 May
16 Jul
0 wk
16 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
31 Mar – 14 Apr
5 May
6-8 wk
26 May
16 Jun
0 wk
16 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
27 Apr – 11 May
13 May
4-6 wk
8 Jun
10 Jun
2 wk after
Garden pansy
Viola × wittrockiana
17 – 31 Mar
21 May
8-10 wk
26 May
16 Jul
0 wk
11 Jun
6 Jul
2 wk after
Petunia
Petunia
16 Mar – 13 Apr
26 Apr
8-12 wk
8 Jun
21 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
2 – 16 Apr
5 May
6-8 wk
28 May
16 Jun
0 wk
14 Jul
7 wk after
Common zinnia
Zinnia elegans
27 Apr – 11 May
28 May
4-6 wk
8 Jun
25 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
4 – 18 May
4 Jun
3-5 wk
8 Jun
25 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
27 Apr – 11 May
2 Jun
4-6 wk
8 Jun
30 Jun
2 wk after
14 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
4 Apr – 2 May
20 May
8-12 wk
27 Jun
15 Jul
5 wk after
Bee balm
Monarda didyma
3 – 31 Mar
21 Apr
8-12 wk
26 May
16 Jun
0 wk
30 Jun
5 wk after
Yarrow
Achillea millefolium
31 Mar – 14 Apr
5 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Safflower
Carthamus tinctorius
26 May
16 Jun
0 wk
30 May
6 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
31 Mar – 14 Apr
25 May
6-8 wk
26 May
6 Jul
0 wk
8 May
26 Jun
3 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
8 Jun
4-6 wk
26 May
6 Jul
0 wk
16 Jun
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Fleece
16 – 30 Mar
1 Apr
10-12 wk
8 Jun
10 Jun
2 wk after
Sunflower
Helianthus annuus
11 – 18 May
15 Jun
3-4 wk
8 Jun
6 Jul
2 wk after
30 Jun
5 wk after
China aster
Callistephus chinensis
13 – 27 Apr
4 Jun
6-8 wk
8 Jun
16 Jul
2 wk after
14 Jul
7 wk after
Annual phlox
Phlox drummondii
6 – 20 Apr
20 May
6-8 wk
1 Jun
1 Jul
1 wk after
14 Jul
7 wk after
Hollyhock
Alcea rosea
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Alpine delphinium
Delphinium elatum
3 – 31 Mar
21 Apr
8-12 wk
26 May
16 Jun
0 wk
30 Jun
5 wk after
African marigold
Tagetes erecta
13 – 27 Apr
20 May
6-8 wk
8 Jun
1 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
2 – 16 Apr
25 May
6-8 wk
28 May
6 Jul
0 wk
14 Jul
7 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
11 Apr
8-10 wk
26 May
6 Jun
0 wk
30 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
30 Mar – 27 Apr
14 May
6-10 wk
8 Jun
25 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
26 May
16 Jul
0 wk
30 May
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
30 Mar – 13 Apr
11 May
8-10 wk
8 Jun
6 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
31 Mar – 14 Apr
5 May
6-8 wk
26 May
16 Jun
0 wk
16 Jun
3 wk after