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Method
Rel. frost
Last spring frost (0°C) 27 May Frost 3 of 4 years · 20 years of data
Frost-free season 92 days 27 May – 27 Aug
Probability that frost is over

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