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Method
Rel. frost
Last spring frost (0°C) 27 May Frost 1 of 4 years · 20 years of data
Frost-free season 113 days 27 May – 17 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)
8 – 22 Apr
11 Jun
5-7 wk
27 May
16 Jul
0 wk
28 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Apr
23 Jun
4-6 wk
27 May
21 Jul
0 wk
28 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
10 Mar – 7 Apr
11 Apr
8-12 wk
2 Jun
6 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
8 – 22 Apr
6 Jun
5-7 wk
27 May
11 Jul
0 wk
27 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
12 – 19 May
5 Jun
3-4 wk
9 Jun
26 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
24 – 31 May
27 May
4-5 wk
28 Jun
5 wk after
9 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
7 – 14 Jun
3-4 wk
5 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
4 Mar – 1 Apr
27 Mar
8-12 wk
27 May
0 wk
2 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
28 May
30 May
0 wk
28 May
0 wk
Maize
Zea mays
Fleece
5 – 12 May
26 May
3-4 wk
2 Jun
16 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
1 – 8 May
30 Jun
3-4 wk
29 May
21 Jul
0 wk
9 Jun
11 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 May
1 Jul
0 wk
27 May
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Apr
6 Jun
5-7 wk
27 May
11 Jul
0 wk
27 May
1 Jul
0 wk
Potato
Solanum tuberosum
25 Apr – 9 May
15 May
4-6 wk
6 Jun
12 Jun
1 wk after
6 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Apr
16 Jun
5-7 wk
27 May
21 Jul
0 wk
28 May
11 Jul
0 wk
Pumpkin
Cucurbita pepo
31 May – 7 Jun
10 Jun
3-4 wk
28 Jun
1 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
1 – 8 May
26 May
3-4 wk
29 May
16 Jun
0 wk
9 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 – 29 Apr
18 Jun
4-6 wk
27 May
16 Jul
0 wk
Lettuce
Lactuca sativa
29 Apr – 6 May
5 Jul
3-4 wk
27 May
26 Jul
0 wk
28 May
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
15 – 29 Apr
18 Jun
4-6 wk
27 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
29 Apr – 13 May
21 May
2-4 wk
27 May
4 Jun
0 wk
27 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
28 May
30 May
0 wk
28 May
0 wk
Spinach
Spinacia oleracea
29 Apr – 6 May
20 Jul
3-4 wk
27 May
10 Aug
0 wk
24 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
21 Jun – 5 Jul
4-6 wk
2 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
7 – 21 Apr
5 May
6-8 wk
2 Jun
16 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
12 – 26 May
12 Jun
2-4 wk
9 Jun
26 Jun
2 wk after
9 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 – 29 Apr
18 Jun
4-6 wk
27 May
16 Jul
0 wk
Garden pea
Pisum sativum
29 Apr – 6 May
20 Jun
3-4 wk
27 May
11 Jul
0 wk
28 May
1 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
28 Apr – 12 May
24 May
4-6 wk
9 Jun
21 Jun
2 wk after
Lemon balm
Melissa officinalis
18 Mar – 1 Apr
16 May
8-10 wk
27 May
11 Jul
0 wk
21 Jun
1 Jul
4 wk after
Dill
Anethum graveolens
28 May
21 Jul
0 wk
Wild chives
Allium schoenoprasum
1 – 15 Apr
30 May
6-8 wk
27 May
11 Jul
0 wk
28 May
1 Jul
0 wk
Spearmint
Mentha spicata
4 Mar – 1 Apr
16 May
8-12 wk
27 May
11 Jul
0 wk
21 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
27 May
10 Aug
0 wk
9 Jun
31 Jul
2 wk after
Garden sage
Salvia officinalis
20 Mar – 3 Apr
1 May
8-10 wk
29 May
26 Jun
0 wk
Common thyme
Thymus vulgaris
18 Mar – 1 Apr
6 May
8-10 wk
27 May
1 Jul
0 wk
Oregano
Origanum vulgare
1 – 15 Apr
20 May
6-8 wk
27 May
1 Jul
0 wk
21 Jun
21 Jun
4 wk after
Parsley
Petroselinum crispum
1 – 15 Apr
20 May
6-8 wk
27 May
1 Jul
0 wk
28 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
20 Feb – 20 Mar
2 Apr
10-14 wk
29 May
11 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
12 – 19 May
31 May
3-4 wk
9 Jun
21 Jun
2 wk after
Cornflower
Centaurea cyanus
27 May
11 Jul
0 wk
28 May
1 Jul
0 wk
Statice
Limonium sinuatum
31 Mar – 14 Apr
22 Apr
8-10 wk
9 Jun
17 Jun
2 wk after
Sweet William
Dianthus barbatus
1 – 15 Apr
6-8 wk
27 May
0 wk
6 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
14 – 28 Apr
6 May
6-8 wk
9 Jun
17 Jun
2 wk after
2 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
12 – 26 Apr
11 May
6-8 wk
7 Jun
22 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
14 Apr – 12 May
3 Jun
4-8 wk
9 Jun
1 Jul
2 wk after
9 Jun
21 Jun
2 wk after
Foxglove
Digitalis purpurea
18 Mar – 1 Apr
8-10 wk
27 May
0 wk
9 Jun
2 wk after
Busy lizzie
Impatiens walleriana
5 Apr – 3 May
11 Jun
8-12 wk
28 Jun
6 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
14 – 28 Apr
16 May
6-8 wk
9 Jun
27 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
28 Apr – 12 May
4-6 wk
9 Jun
2 wk after
Chinese lantern
Physalis alkekengi
20 Mar – 3 Apr
16 Apr
8-10 wk
29 May
11 Jun
0 wk
Love in a mist
Nigella damascena
27 May
26 Jun
0 wk
28 May
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
14 – 28 Apr
26 Apr
6-8 wk
9 Jun
2 wk after
2 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
6 Mar – 3 Apr
16 Apr
8-12 wk
29 May
11 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
10 Mar – 7 Apr
17 Mar
8-12 wk
2 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
17 Mar – 14 Apr
16 Apr
8-12 wk
9 Jun
11 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
14 – 28 Apr
30 Apr
6-8 wk
9 Jun
11 Jun
2 wk after
Corn poppy
Papaver rhoeas
27 May
11 Jul
0 wk
28 May
1 Jul
0 wk
Snapdragon
Antirrhinum majus
4 Mar – 1 Apr
6 May
8-12 wk
27 May
1 Jul
0 wk
6 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
19 Apr – 3 May
2 May
8-10 wk
28 Jun
5 wk after
Sweet pea
Lathyrus odoratus
1 – 22 Apr
27 May
5-8 wk
27 May
1 Jul
0 wk
Stock
Matthiola incana
1 – 15 Apr
30 May
6-8 wk
27 May
11 Jul
0 wk
9 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
1 – 15 Apr
30 Apr
6-8 wk
27 May
11 Jun
0 wk
9 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
28 Apr – 12 May
9 May
4-6 wk
9 Jun
2 wk after
Garden pansy
Viola × wittrockiana
18 Mar – 1 Apr
16 May
8-10 wk
27 May
11 Jul
0 wk
6 Jun
1 Jul
1 wk after
Petunia
Petunia
17 Mar – 14 Apr
22 Apr
8-12 wk
9 Jun
17 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
3 – 17 Apr
30 Apr
6-8 wk
29 May
11 Jun
0 wk
9 Jul
6 wk after
Common zinnia
Zinnia elegans
28 Apr – 12 May
24 May
4-6 wk
9 Jun
21 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
5 – 19 May
31 May
3-5 wk
9 Jun
21 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
28 Apr – 12 May
25 May
4-6 wk
9 Jun
22 Jun
2 wk after
9 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
5 Apr – 3 May
16 May
8-12 wk
28 Jun
11 Jul
5 wk after
Bee balm
Monarda didyma
4 Mar – 1 Apr
16 Apr
8-12 wk
27 May
11 Jun
0 wk
21 Jun
4 wk after
Yarrow
Achillea millefolium
1 – 15 Apr
6-8 wk
27 May
0 wk
9 Jun
2 wk after
Safflower
Carthamus tinctorius
27 May
11 Jun
0 wk
28 May
1 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
1 – 15 Apr
20 May
6-8 wk
27 May
1 Jul
0 wk
11 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
15 – 29 Apr
3 Jun
4-6 wk
27 May
1 Jul
0 wk
9 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Fleece
17 – 31 Mar
24 Mar
10-12 wk
9 Jun
2 wk after
Sunflower
Helianthus annuus
12 – 19 May
10 Jun
3-4 wk
9 Jun
1 Jul
2 wk after
21 Jun
21 Jun
4 wk after
China aster
Callistephus chinensis
14 – 28 Apr
30 May
6-8 wk
9 Jun
11 Jul
2 wk after
9 Jul
6 wk after
Annual phlox
Phlox drummondii
7 – 21 Apr
16 May
6-8 wk
2 Jun
27 Jun
1 wk after
9 Jul
6 wk after
Hollyhock
Alcea rosea
1 – 15 Apr
6-8 wk
27 May
0 wk
9 Jun
2 wk after
Alpine delphinium
Delphinium elatum
4 Mar – 1 Apr
16 Apr
8-12 wk
27 May
11 Jun
0 wk
21 Jun
4 wk after
African marigold
Tagetes erecta
14 – 28 Apr
16 May
6-8 wk
9 Jun
27 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
3 – 17 Apr
20 May
6-8 wk
29 May
1 Jul
0 wk
9 Jul
6 wk after
Wood sage
Salvia nemorosa
18 Mar – 1 Apr
6 Apr
8-10 wk
27 May
1 Jun
0 wk
21 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
31 Mar – 28 Apr
10 May
6-10 wk
9 Jun
21 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
27 May
11 Jul
0 wk
28 May
1 Jul
0 wk
Painted tongue
Salpiglossis sinuata
31 Mar – 14 Apr
29 Apr
8-10 wk
9 Jun
24 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
1 – 15 Apr
30 Apr
6-8 wk
27 May
11 Jun
0 wk
9 Jun
2 wk after