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Method
Rel. frost
Last spring frost (0°C) 25 May Frost 3 of 4 years · 20 years of data
Frost-free season 94 days 25 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)
6 – 20 Apr
13 Jun
5-7 wk
25 May
18 Jul
0 wk
26 May
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
13 – 27 Apr
25 Jun
4-6 wk
25 May
23 Jul
0 wk
26 May
13 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
8 Mar – 5 Apr
21 Mar
8-12 wk
31 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
6 – 20 Apr
8 Jun
5-7 wk
25 May
13 Jul
0 wk
25 May
3 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
10 – 17 May
15 May
3-4 wk
7 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
3 – 10 May
26 May
4-5 wk
7 Jun
23 Jun
2 wk after
19 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
5 – 12 Jun
3-4 wk
3 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
2 – 30 Mar
20 Mar
8-12 wk
25 May
0 wk
31 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
26 May
28 May
0 wk
26 May
0 wk
Maize
Zea mays
Fleece
3 – 10 May
5 May
3-4 wk
31 May
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
29 Apr – 6 May
22 Jun
3-4 wk
27 May
13 Jul
0 wk
7 Jun
3 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
25 May
27 Jun
0 wk
25 May
17 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
6 – 20 Apr
8 Jun
5-7 wk
25 May
13 Jul
0 wk
25 May
3 Jul
0 wk
Potato
Solanum tuberosum
23 Apr – 7 May
10 May
4-6 wk
4 Jun
7 Jun
1 wk after
4 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
6 – 20 Apr
12 Jun
5-7 wk
25 May
17 Jul
0 wk
26 May
7 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
10 – 17 May
3 Jun
3-4 wk
7 Jun
24 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
29 Apr – 6 May
16 May
3-4 wk
27 May
6 Jun
0 wk
7 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
13 – 27 Apr
20 Jun
4-6 wk
25 May
18 Jul
0 wk
Lettuce
Lactuca sativa
27 Apr – 4 May
1 Jul
3-4 wk
25 May
22 Jul
0 wk
26 May
12 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
13 – 27 Apr
20 Jun
4-6 wk
25 May
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
27 Apr – 11 May
18 May
2-4 wk
25 May
1 Jun
0 wk
25 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
26 May
28 May
0 wk
26 May
0 wk
Spinach
Spinacia oleracea
27 Apr – 4 May
22 Jul
3-4 wk
25 May
12 Aug
0 wk
22 May
2 Aug
0 wk
Sweet potato
Ipomoea batatas
19 Jun – 3 Jul
4-6 wk
31 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
5 – 19 Apr
14 Apr
6-8 wk
31 May
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
10 – 24 May
22 May
2-4 wk
7 Jun
2 wk after
7 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
13 – 27 Apr
20 Jun
4-6 wk
25 May
18 Jul
0 wk
Garden pea
Pisum sativum
27 Apr – 4 May
16 Jun
3-4 wk
25 May
7 Jul
0 wk
26 May
27 Jun
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
26 Apr – 10 May
12 May
4-6 wk
7 Jun
9 Jun
2 wk after
Lemon balm
Melissa officinalis
16 – 30 Mar
12 May
8-10 wk
25 May
7 Jul
0 wk
19 Jun
27 Jun
4 wk after
Dill
Anethum graveolens
26 May
13 Jul
0 wk
Wild chives
Allium schoenoprasum
30 Mar – 13 Apr
1 Jun
6-8 wk
25 May
13 Jul
0 wk
26 May
3 Jul
0 wk
Spearmint
Mentha spicata
2 – 30 Mar
18 May
8-12 wk
25 May
13 Jul
0 wk
19 Jun
3 Jul
4 wk after
Coriander
Coriandrum sativum
25 May
2 Aug
0 wk
7 Jun
23 Jul
2 wk after
Garden sage
Salvia officinalis
18 Mar – 1 Apr
3 May
8-10 wk
27 May
28 Jun
0 wk
Common thyme
Thymus vulgaris
16 – 30 Mar
8 May
8-10 wk
25 May
3 Jul
0 wk
Oregano
Origanum vulgare
30 Mar – 13 Apr
22 May
6-8 wk
25 May
3 Jul
0 wk
19 Jun
23 Jun
4 wk after
Parsley
Petroselinum crispum
30 Mar – 13 Apr
22 May
6-8 wk
25 May
3 Jul
0 wk
26 May
23 Jun
0 wk
Rosemary
Salvia rosmarinus
18 Feb – 18 Mar
16 Mar
10-14 wk
27 May
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
10 – 17 May
19 May
3-4 wk
7 Jun
9 Jun
2 wk after
Cornflower
Centaurea cyanus
25 May
13 Jul
0 wk
26 May
3 Jul
0 wk
Statice
Limonium sinuatum
29 Mar – 12 Apr
16 Apr
8-10 wk
7 Jun
11 Jun
2 wk after
Sweet William
Dianthus barbatus
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
4 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
12 – 26 Apr
30 Apr
6-8 wk
7 Jun
11 Jun
2 wk after
31 Jul
10 wk after
Pinnate dahlia
Dahlia × pinnata
10 – 24 Apr
3 May
6-8 wk
5 Jun
14 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
24 Apr – 22 May
17 May
4-8 wk
19 Jun
4 wk after
19 Jun
4 wk after
Foxglove
Digitalis purpurea
16 – 30 Mar
8-10 wk
25 May
0 wk
7 Jun
2 wk after
Busy lizzie
Impatiens walleriana
3 Apr – 1 May
30 May
8-12 wk
26 Jun
25 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
12 – 26 Apr
10 May
6-8 wk
7 Jun
21 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
26 Apr – 10 May
4-6 wk
7 Jun
2 wk after
Chinese lantern
Physalis alkekengi
18 Mar – 1 Apr
8 Apr
8-10 wk
27 May
3 Jun
0 wk
Love in a mist
Nigella damascena
25 May
22 Jun
0 wk
26 May
12 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
5 – 19 Apr
28 Apr
6-8 wk
31 May
9 Jun
1 wk after
14 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
4 Mar – 1 Apr
8 Apr
8-12 wk
27 May
3 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
2 – 30 Mar
19 Mar
8-12 wk
25 May
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
8 Mar – 5 Apr
19 Apr
8-12 wk
31 May
14 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
5 – 19 Apr
3 May
6-8 wk
31 May
14 Jun
1 wk after
Corn poppy
Papaver rhoeas
25 May
7 Jul
0 wk
26 May
27 Jun
0 wk
Snapdragon
Antirrhinum majus
2 – 30 Mar
2 May
8-12 wk
25 May
27 Jun
0 wk
4 Jun
17 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
29 Mar – 12 Apr
4 May
8-10 wk
7 Jun
29 Jun
2 wk after
Sweet pea
Lathyrus odoratus
30 Mar – 20 Apr
29 May
5-8 wk
25 May
3 Jul
0 wk
Stock
Matthiola incana
30 Mar – 13 Apr
26 May
6-8 wk
25 May
7 Jul
0 wk
7 Jun
27 Jun
2 wk after
Wormwood
Artemisia absinthium
30 Mar – 13 Apr
2 May
6-8 wk
25 May
13 Jun
0 wk
7 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
19 Apr – 3 May
12 May
4-6 wk
31 May
9 Jun
1 wk after
Garden pansy
Viola × wittrockiana
16 – 30 Mar
18 May
8-10 wk
25 May
13 Jul
0 wk
4 Jun
3 Jul
1 wk after
Petunia
Petunia
15 Mar – 12 Apr
16 Apr
8-12 wk
7 Jun
11 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
1 – 15 Apr
22 Apr
6-8 wk
27 May
3 Jun
0 wk
7 Jul
6 wk after
Common zinnia
Zinnia elegans
26 Apr – 10 May
12 May
4-6 wk
7 Jun
9 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
3 – 17 May
19 May
3-5 wk
7 Jun
9 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
26 Apr – 10 May
17 May
4-6 wk
7 Jun
14 Jun
2 wk after
7 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
15 Mar – 12 Apr
19 May
8-12 wk
7 Jun
14 Jul
2 wk after
Bee balm
Monarda didyma
2 – 30 Mar
12 Apr
8-12 wk
25 May
7 Jun
0 wk
19 Jun
4 wk after
Yarrow
Achillea millefolium
30 Mar – 13 Apr
2 Apr
6-8 wk
25 May
0 wk
7 Jun
2 wk after
Safflower
Carthamus tinctorius
25 May
13 Jun
0 wk
26 May
3 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
30 Mar – 13 Apr
22 May
6-8 wk
25 May
3 Jul
0 wk
9 May
23 Jun
2 wk before
Bishop's flower
Ammi majus
13 – 27 Apr
30 May
4-6 wk
25 May
27 Jun
0 wk
7 Jun
17 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
8 – 22 Mar
23 Mar
10-12 wk
31 May
1 Jun
1 wk after
Sunflower
Helianthus annuus
10 – 17 May
24 May
3-4 wk
7 Jun
14 Jun
2 wk after
19 Jun
4 wk after
China aster
Callistephus chinensis
12 – 26 Apr
13 May
6-8 wk
7 Jun
24 Jun
2 wk after
7 Jul
6 wk after
Annual phlox
Phlox drummondii
5 – 19 Apr
10 May
6-8 wk
31 May
21 Jun
1 wk after
7 Jul
6 wk after
Hollyhock
Alcea rosea
30 Mar – 13 Apr
6-8 wk
25 May
0 wk
7 Jun
2 wk after
Alpine delphinium
Delphinium elatum
2 – 30 Mar
12 Apr
8-12 wk
25 May
7 Jun
0 wk
19 Jun
4 wk after
African marigold
Tagetes erecta
12 – 26 Apr
10 May
6-8 wk
7 Jun
21 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
1 – 15 Apr
3 May
6-8 wk
27 May
14 Jun
0 wk
7 Jul
6 wk after
Wood sage
Salvia nemorosa
16 – 30 Mar
2 Apr
8-10 wk
25 May
28 May
0 wk
19 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
29 Mar – 26 Apr
28 Apr
6-10 wk
7 Jun
9 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
25 May
7 Jul
0 wk
26 May
27 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
22 Mar – 5 Apr
28 Apr
8-10 wk
31 May
23 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
30 Mar – 13 Apr
2 May
6-8 wk
25 May
13 Jun
0 wk
7 Jun
2 wk after