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Method
Rel. frost
Last spring frost (0°C) 27 May Frost 1 of 10 years · 20 years of data
Frost-free season 138 days 27 May – 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)
8 – 22 Apr
18 Jun
5-7 wk
27 May
23 Jul
0 wk
20 May
13 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Apr
30 Jun
4-6 wk
27 May
28 Jul
0 wk
20 May
18 Jul
1 wk before
Chili pepper
Capsicum annuum
Season too short
10 Mar – 7 Apr
8-12 wk
2 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
8 – 22 Apr
13 Jun
5-7 wk
27 May
18 Jul
0 wk
15 May
8 Jul
2 wk before
Garden cucumber
Cucumis sativus
Greenhouse
5 – 12 May
21 May
3-4 wk
2 Jun
11 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
24 – 31 May
10 Jun
4-5 wk
28 Jun
8 Jul
5 wk after
2 Jul
5 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)
4 Mar – 1 Apr
3 Apr
8-12 wk
27 May
29 May
0 wk
6 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
20 May
18 Jun
1 wk before
20 May
8 Jun
1 wk before
Maize
Zea mays
Greenhouse
29 Apr – 6 May
11 May
3-4 wk
27 May
1 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
1 – 8 May
7 Jul
3-4 wk
29 May
28 Jul
0 wk
6 Jun
18 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 May
8 Jul
0 wk
15 May
28 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Apr
13 Jun
5-7 wk
27 May
18 Jul
0 wk
15 May
8 Jul
2 wk before
Potato
Solanum tuberosum
20 Apr – 4 May
10 Jun
4-6 wk
1 Jun
8 Jul
1 wk after
1 Jun
28 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Apr
23 Jun
5-7 wk
27 May
28 Jul
0 wk
20 May
18 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
12 – 19 May
26 May
3-4 wk
9 Jun
16 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
1 – 8 May
1 Jul
3-4 wk
29 May
22 Jul
0 wk
6 Jun
12 Jul
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 – 29 Apr
25 Jun
4-6 wk
27 May
23 Jul
0 wk
Lettuce
Lactuca sativa
29 Apr – 6 May
12 Jul
3-4 wk
27 May
2 Aug
0 wk
20 May
23 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
15 – 29 Apr
25 Jun
4-6 wk
27 May
23 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
17 Apr – 1 May
4 Jun
2-4 wk
15 May
18 Jun
2 wk before
15 May
8 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
20 May
18 Jun
1 wk before
20 May
8 Jun
1 wk before
Spinach
Spinacia oleracea
29 Apr – 6 May
27 Jul
3-4 wk
27 May
17 Aug
0 wk
9 May
7 Aug
3 wk before
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
1 – 15 Apr
20 Apr
6-8 wk
27 May
1 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
5 – 19 May
28 May
2-4 wk
2 Jun
11 Jun
1 wk after
17 Jun
3 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 – 29 Apr
25 Jun
4-6 wk
27 May
23 Jul
0 wk
Garden pea
Pisum sativum
29 Apr – 6 May
27 Jun
3-4 wk
27 May
18 Jul
0 wk
20 May
8 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
28 Apr – 12 May
4 May
4-6 wk
9 Jun
2 wk after
Lemon balm
Melissa officinalis
18 Mar – 1 Apr
23 May
8-10 wk
27 May
18 Jul
0 wk
17 Jun
8 Jul
3 wk after
Dill
Anethum graveolens
20 May
28 Jul
1 wk before
Wild chives
Allium schoenoprasum
1 – 15 Apr
6 Jun
6-8 wk
27 May
18 Jul
0 wk
20 May
8 Jul
1 wk before
Spearmint
Mentha spicata
4 Mar – 1 Apr
23 May
8-12 wk
27 May
18 Jul
0 wk
17 Jun
8 Jul
3 wk after
Coriander
Coriandrum sativum
27 May
17 Aug
0 wk
6 Jun
7 Aug
1 wk after
Garden sage
Salvia officinalis
20 Mar – 3 Apr
8 May
8-10 wk
29 May
3 Jul
0 wk
Common thyme
Thymus vulgaris
18 Mar – 1 Apr
13 May
8-10 wk
27 May
8 Jul
0 wk
Oregano
Origanum vulgare
1 – 15 Apr
27 May
6-8 wk
27 May
8 Jul
0 wk
17 Jun
28 Jun
3 wk after
Parsley
Petroselinum crispum
1 – 15 Apr
27 May
6-8 wk
27 May
8 Jul
0 wk
20 May
28 Jun
1 wk before
Rosemary
Salvia rosmarinus
20 Feb – 20 Mar
9 Apr
10-14 wk
29 May
18 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
3-4 wk
9 Jun
2 wk after
Cornflower
Centaurea cyanus
27 May
18 Jul
0 wk
20 May
8 Jul
1 wk before
Statice
Limonium sinuatum
31 Mar – 14 Apr
10 Apr
8-10 wk
9 Jun
2 wk after
Sweet William
Dianthus barbatus
1 – 15 Apr
6-8 wk
27 May
0 wk
1 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
14 – 28 Apr
24 Apr
6-8 wk
9 Jun
2 wk after
4 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
12 – 26 Apr
27 Apr
6-8 wk
7 Jun
8 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
22 Apr – 20 May
11 May
4-8 wk
17 Jun
3 wk after
17 Jun
3 wk after
Foxglove
Digitalis purpurea
18 Mar – 1 Apr
8-10 wk
27 May
0 wk
6 Jun
1 wk after
Busy lizzie
Impatiens walleriana
5 Apr – 3 May
22 May
8-12 wk
28 Jun
17 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
14 – 28 Apr
4 May
6-8 wk
9 Jun
15 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
23 Apr
8-10 wk
29 May
18 Jun
0 wk
Love in a mist
Nigella damascena
27 May
3 Jul
0 wk
20 May
23 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
7 – 21 Apr
29 Apr
6-8 wk
2 Jun
10 Jun
1 wk after
12 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
6 Mar – 3 Apr
23 Apr
8-12 wk
29 May
18 Jun
0 wk
Cardoon
Cynara cardunculus
17 Mar – 14 Apr
24 Mar
8-12 wk
9 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
10 Mar – 7 Apr
13 Apr
8-12 wk
2 Jun
8 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
7 – 21 Apr
27 Apr
6-8 wk
2 Jun
8 Jun
1 wk after
Corn poppy
Papaver rhoeas
27 May
18 Jul
0 wk
20 May
8 Jul
1 wk before
Snapdragon
Antirrhinum majus
4 Mar – 1 Apr
13 May
8-12 wk
27 May
8 Jul
0 wk
1 Jun
28 Jun
1 wk after
Flossflower
Ageratum houstonianum
19 Apr – 3 May
20 Apr
8-10 wk
28 Jun
5 wk after
Sweet pea
Lathyrus odoratus
1 – 22 Apr
3 Jun
5-8 wk
27 May
8 Jul
0 wk
Stock
Matthiola incana
1 – 15 Apr
6 Jun
6-8 wk
27 May
18 Jul
0 wk
6 Jun
8 Jul
1 wk after
Wormwood
Artemisia absinthium
1 – 15 Apr
7 May
6-8 wk
27 May
18 Jun
0 wk
6 Jun
8 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
21 Apr – 5 May
6 May
4-6 wk
2 Jun
3 Jun
1 wk after
Garden pansy
Viola × wittrockiana
18 Mar – 1 Apr
23 May
8-10 wk
27 May
18 Jul
0 wk
1 Jun
8 Jul
1 wk after
Petunia
Petunia
17 Mar – 14 Apr
10 Apr
8-12 wk
9 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
3 – 17 Apr
7 May
6-8 wk
29 May
18 Jun
0 wk
2 Jul
5 wk after
Common zinnia
Zinnia elegans
28 Apr – 12 May
4 May
4-6 wk
9 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
5 – 19 May
11 May
3-5 wk
9 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
28 Apr – 12 May
11 May
4-6 wk
9 Jun
2 wk after
2 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
5 Apr – 3 May
26 Apr
8-12 wk
28 Jun
5 wk after
Bee balm
Monarda didyma
4 Mar – 1 Apr
23 Apr
8-12 wk
27 May
18 Jun
0 wk
17 Jun
3 wk after
Yarrow
Achillea millefolium
1 – 15 Apr
7 Apr
6-8 wk
27 May
0 wk
6 Jun
1 wk after
Safflower
Carthamus tinctorius
27 May
18 Jun
0 wk
20 May
8 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
1 – 15 Apr
27 May
6-8 wk
27 May
8 Jul
0 wk
18 Apr
28 Jun
6 wk before
Bishop's flower
Ammi majus
15 – 29 Apr
10 Jun
4-6 wk
27 May
8 Jul
0 wk
6 Jun
28 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
10 – 24 Mar
31 Mar
10-12 wk
2 Jun
9 Jun
1 wk after
Sunflower
Helianthus annuus
12 – 19 May
17 Jun
3-4 wk
9 Jun
8 Jul
2 wk after
17 Jun
28 Jun
3 wk after
China aster
Callistephus chinensis
14 – 28 Apr
6 Jun
6-8 wk
9 Jun
18 Jul
2 wk after
2 Jul
8 Jul
5 wk after
Annual phlox
Phlox drummondii
7 – 21 Apr
4 May
6-8 wk
2 Jun
15 Jun
1 wk after
2 Jul
5 wk after
Hollyhock
Alcea rosea
1 – 15 Apr
6-8 wk
27 May
0 wk
6 Jun
1 wk after
Alpine delphinium
Delphinium elatum
4 Mar – 1 Apr
23 Apr
8-12 wk
27 May
18 Jun
0 wk
17 Jun
3 wk after
African marigold
Tagetes erecta
14 – 28 Apr
4 May
6-8 wk
9 Jun
15 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
3 – 17 Apr
27 May
6-8 wk
29 May
8 Jul
0 wk
2 Jul
5 wk after
Wood sage
Salvia nemorosa
18 Mar – 1 Apr
13 Apr
8-10 wk
27 May
8 Jun
0 wk
17 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
31 Mar – 28 Apr
20 Apr
6-10 wk
9 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
27 May
18 Jul
0 wk
20 May
8 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
31 Mar – 14 Apr
13 May
8-10 wk
9 Jun
8 Jul
2 wk after
Water forget-me-not
Myosotis scorpioides
1 – 15 Apr
7 May
6-8 wk
27 May
18 Jun
0 wk
6 Jun
8 Jun
1 wk after