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Method
Rel. frost
Last spring frost (0°C) 30 May Frost 1 of 4 years · 20 years of data
Frost-free season 121 days 30 May – 28 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)
11 – 25 Apr
18 Jun
5-7 wk
30 May
23 Jul
0 wk
23 May
13 Jul
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
18 Apr – 2 May
30 Jun
4-6 wk
30 May
28 Jul
0 wk
23 May
18 Jul
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
13 Mar – 10 Apr
9 Apr
8-12 wk
5 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
11 – 25 Apr
13 Jun
5-7 wk
30 May
18 Jul
0 wk
18 May
8 Jul
2 wk before
Garden cucumber
Cucumis sativus
Fleece
15 – 22 May
3 Jun
3-4 wk
12 Jun
24 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
8 – 15 May
10 Jun
4-5 wk
12 Jun
8 Jul
2 wk after
20 Jun
28 Jun
3 wk after
Butter bean
Phaseolus lunatus
Season too short
10 – 17 Jun
3-4 wk
8 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
7 Mar – 4 Apr
27 Mar
8-12 wk
30 May
0 wk
29 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
23 May
3 Jun
1 wk before
23 May
24 May
1 wk before
Maize
Zea mays
Fleece
8 – 15 May
24 May
3-4 wk
5 Jun
14 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
4 – 11 May
7 Jul
3-4 wk
1 Jun
28 Jul
0 wk
9 Jun
18 Jul
1 wk after
Carrot
Daucus carota subsp. sativus var. sativus
30 May
8 Jul
0 wk
18 May
28 Jun
2 wk before
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
11 – 25 Apr
13 Jun
5-7 wk
30 May
18 Jul
0 wk
18 May
8 Jul
2 wk before
Potato
Solanum tuberosum
Fleece
11 – 25 Apr
26 May
4-6 wk
23 May
23 Jun
1 wk before
23 May
13 Jun
1 wk before
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
11 – 25 Apr
23 Jun
5-7 wk
30 May
28 Jul
0 wk
23 May
18 Jul
1 wk before
Pumpkin
Cucurbita pepo
Fleece
15 – 22 May
18 Jun
3-4 wk
12 Jun
9 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
4 – 11 May
4 May
3-4 wk
1 Jun
0 wk
9 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
18 Apr – 2 May
25 Jun
4-6 wk
30 May
23 Jul
0 wk
Lettuce
Lactuca sativa
2 – 9 May
12 Jul
3-4 wk
30 May
2 Aug
0 wk
23 May
23 Jul
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
18 Apr – 2 May
25 Jun
4-6 wk
30 May
23 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
20 Apr – 4 May
26 May
2-4 wk
18 May
9 Jun
2 wk before
18 May
30 May
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
23 May
3 Jun
1 wk before
23 May
24 May
1 wk before
Spinach
Spinacia oleracea
2 – 9 May
27 Jul
3-4 wk
30 May
17 Aug
0 wk
12 May
7 Aug
3 wk before
Sweet potato
Ipomoea batatas
26 Jun – 10 Jul
4-6 wk
7 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
10 – 24 Apr
3 May
6-8 wk
5 Jun
14 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
15 – 29 May
10 Jun
2-4 wk
12 Jun
24 Jun
2 wk after
5 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
18 Apr – 2 May
25 Jun
4-6 wk
30 May
23 Jul
0 wk
Garden pea
Pisum sativum
2 – 9 May
27 Jun
3-4 wk
30 May
18 Jul
0 wk
23 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
1 – 15 May
27 May
4-6 wk
12 Jun
24 Jun
2 wk after
Lemon balm
Melissa officinalis
21 Mar – 4 Apr
23 May
8-10 wk
30 May
18 Jul
0 wk
20 Jun
8 Jul
3 wk after
Dill
Anethum graveolens
23 May
28 Jul
1 wk before
Wild chives
Allium schoenoprasum
4 – 18 Apr
6 Jun
6-8 wk
30 May
18 Jul
0 wk
23 May
8 Jul
1 wk before
Spearmint
Mentha spicata
7 Mar – 4 Apr
23 May
8-12 wk
30 May
18 Jul
0 wk
20 Jun
8 Jul
3 wk after
Coriander
Coriandrum sativum
30 May
17 Aug
0 wk
9 Jun
7 Aug
1 wk after
Garden sage
Salvia officinalis
23 Mar – 6 Apr
8 May
8-10 wk
1 Jun
3 Jul
0 wk
Common thyme
Thymus vulgaris
21 Mar – 4 Apr
13 May
8-10 wk
30 May
8 Jul
0 wk
Oregano
Origanum vulgare
4 – 18 Apr
27 May
6-8 wk
30 May
8 Jul
0 wk
20 Jun
28 Jun
3 wk after
Parsley
Petroselinum crispum
4 – 18 Apr
27 May
6-8 wk
30 May
8 Jul
0 wk
23 May
28 Jun
1 wk before
Rosemary
Salvia rosmarinus
23 Feb – 23 Mar
3 Apr
10-14 wk
1 Jun
12 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
15 – 22 May
3 Jun
3-4 wk
12 Jun
24 Jun
2 wk after
Cornflower
Centaurea cyanus
30 May
18 Jul
0 wk
23 May
8 Jul
1 wk before
Statice
Limonium sinuatum
3 – 17 Apr
3 May
8-10 wk
12 Jun
28 Jun
2 wk after
Sweet William
Dianthus barbatus
4 – 18 Apr
6-8 wk
30 May
0 wk
4 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
17 Apr – 1 May
17 May
6-8 wk
12 Jun
28 Jun
2 wk after
7 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
15 – 29 Apr
20 May
6-8 wk
10 Jun
1 Jul
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
14 Apr – 12 May
10 Jun
4-8 wk
9 Jun
8 Jul
1 wk after
9 Jun
28 Jun
1 wk after
Foxglove
Digitalis purpurea
21 Mar – 4 Apr
8-10 wk
30 May
0 wk
9 Jun
1 wk after
Busy lizzie
Impatiens walleriana
8 Apr – 6 May
14 Jun
8-12 wk
1 Jul
9 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
17 Apr – 1 May
27 May
6-8 wk
12 Jun
8 Jul
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
1 – 15 May
4-6 wk
12 Jun
2 wk after
Chinese lantern
Physalis alkekengi
23 Mar – 6 Apr
23 Apr
8-10 wk
1 Jun
18 Jun
0 wk
Love in a mist
Nigella damascena
30 May
3 Jul
0 wk
23 May
23 Jun
1 wk before
Strawflower
Xerochrysum bracteatum
17 Apr – 1 May
7 May
6-8 wk
12 Jun
18 Jun
2 wk after
7 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
9 Mar – 6 Apr
23 Apr
8-12 wk
1 Jun
18 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
13 Mar – 10 Apr
24 Mar
8-12 wk
5 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
20 Mar – 17 Apr
19 Apr
8-12 wk
12 Jun
14 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
17 Apr – 1 May
3 May
6-8 wk
12 Jun
14 Jun
2 wk after
Corn poppy
Papaver rhoeas
30 May
18 Jul
0 wk
23 May
8 Jul
1 wk before
Snapdragon
Antirrhinum majus
7 Mar – 4 Apr
13 May
8-12 wk
30 May
8 Jul
0 wk
4 Jun
28 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
3 – 17 Apr
21 May
8-10 wk
12 Jun
16 Jul
2 wk after
Sweet pea
Lathyrus odoratus
4 – 25 Apr
3 Jun
5-8 wk
30 May
8 Jul
0 wk
Stock
Matthiola incana
4 – 18 Apr
6 Jun
6-8 wk
30 May
18 Jul
0 wk
9 Jun
8 Jul
1 wk after
Wormwood
Artemisia absinthium
4 – 18 Apr
7 May
6-8 wk
30 May
18 Jun
0 wk
9 Jun
1 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
24 Apr – 8 May
29 May
4-6 wk
5 Jun
26 Jun
1 wk after
Garden pansy
Viola × wittrockiana
21 Mar – 4 Apr
23 May
8-10 wk
30 May
18 Jul
0 wk
4 Jun
8 Jul
1 wk after
Petunia
Petunia
20 Mar – 17 Apr
3 May
8-12 wk
12 Jun
28 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
6 – 20 Apr
7 May
6-8 wk
1 Jun
18 Jun
0 wk
5 Jul
5 wk after
Common zinnia
Zinnia elegans
1 – 15 May
27 May
4-6 wk
12 Jun
24 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
8 – 22 May
3 Jun
3-5 wk
12 Jun
24 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
1 – 15 May
3 Jun
4-6 wk
12 Jun
1 Jul
2 wk after
5 Jul
5 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
8 Apr – 6 May
19 May
8-12 wk
1 Jul
14 Jul
5 wk after
Bee balm
Monarda didyma
7 Mar – 4 Apr
23 Apr
8-12 wk
30 May
18 Jun
0 wk
20 Jun
3 wk after
Yarrow
Achillea millefolium
4 – 18 Apr
7 Apr
6-8 wk
30 May
0 wk
9 Jun
1 wk after
Safflower
Carthamus tinctorius
30 May
18 Jun
0 wk
23 May
8 Jun
1 wk before
Iceland poppy
Papaver nudicaule
Season too short
4 – 18 Apr
27 May
6-8 wk
30 May
8 Jul
0 wk
21 Apr
28 Jun
6 wk before
Bishop's flower
Ammi majus
18 Apr – 2 May
10 Jun
4-6 wk
30 May
8 Jul
0 wk
9 Jun
28 Jun
1 wk after
Drumsticks
Pycnosorus globosus
Fleece
20 Mar – 3 Apr
2 Apr
10-12 wk
12 Jun
2 wk after
Sunflower
Helianthus annuus
15 – 22 May
11 Jun
3-4 wk
12 Jun
2 Jul
2 wk after
20 Jun
22 Jun
3 wk after
China aster
Callistephus chinensis
17 Apr – 1 May
31 May
6-8 wk
12 Jun
12 Jul
2 wk after
5 Jul
5 wk after
Annual phlox
Phlox drummondii
10 – 24 Apr
27 May
6-8 wk
5 Jun
8 Jul
1 wk after
5 Jul
5 wk after
Hollyhock
Alcea rosea
4 – 18 Apr
6-8 wk
30 May
0 wk
9 Jun
1 wk after
Alpine delphinium
Delphinium elatum
7 Mar – 4 Apr
23 Apr
8-12 wk
30 May
18 Jun
0 wk
20 Jun
3 wk after
African marigold
Tagetes erecta
17 Apr – 1 May
27 May
6-8 wk
12 Jun
8 Jul
2 wk after
Black-eyed Susan
Rudbeckia hirta
6 – 20 Apr
21 May
6-8 wk
1 Jun
2 Jul
0 wk
5 Jul
5 wk after
Wood sage
Salvia nemorosa
21 Mar – 4 Apr
13 Apr
8-10 wk
30 May
8 Jun
0 wk
20 Jun
3 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
3 Apr – 1 May
13 May
6-10 wk
12 Jun
24 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
30 May
18 Jul
0 wk
23 May
8 Jul
1 wk before
Painted tongue
Salpiglossis sinuata
3 – 17 Apr
4 May
8-10 wk
12 Jun
29 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
4 – 18 Apr
7 May
6-8 wk
30 May
18 Jun
0 wk
9 Jun
1 wk after