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