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Method
Rel. frost
Last spring frost (0°C) 1 Jun Frost 1 of 4 years · 20 years of data
Frost-free season 108 days 1 Jun – 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)
13 – 27 Apr
12 Jun
5-7 wk
1 Jun
17 Jul
0 wk
2 Jun
7 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
20 Apr – 4 May
24 Jun
4-6 wk
1 Jun
22 Jul
0 wk
2 Jun
12 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
20 Mar – 17 Apr
1 Apr
8-12 wk
12 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
13 – 27 Apr
7 Jun
5-7 wk
1 Jun
12 Jul
0 wk
1 Jun
2 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
24 – 31 May
26 May
3-4 wk
21 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
Fleece
17 – 24 May
4 Jun
4-5 wk
21 Jun
2 Jul
3 wk after
26 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
14 – 21 Jun
3-4 wk
12 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
9 Mar – 6 Apr
28 Mar
8-12 wk
1 Jun
0 wk
7 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
2 Jun
4 Jun
0 wk
2 Jun
0 wk
Maize
Zea mays
Fleece
15 – 22 May
16 May
3-4 wk
12 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
10 – 17 May
1 Jul
3-4 wk
7 Jun
22 Jul
1 wk after
14 Jun
12 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
1 Jun
2 Jul
0 wk
1 Jun
22 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
13 – 27 Apr
7 Jun
5-7 wk
1 Jun
12 Jul
0 wk
1 Jun
2 Jul
0 wk
Potato
Solanum tuberosum
30 Apr – 14 May
19 May
4-6 wk
11 Jun
16 Jun
1 wk after
11 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
13 – 27 Apr
17 Jun
5-7 wk
1 Jun
22 Jul
0 wk
2 Jun
12 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
24 – 31 May
14 Jun
3-4 wk
21 Jun
5 Jul
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
10 – 17 May
26 May
3-4 wk
7 Jun
16 Jun
1 wk after
14 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
20 Apr – 4 May
19 Jun
4-6 wk
1 Jun
17 Jul
0 wk
Lettuce
Lactuca sativa
4 – 11 May
6 Jul
3-4 wk
1 Jun
27 Jul
0 wk
2 Jun
17 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
20 Apr – 4 May
19 Jun
4-6 wk
1 Jun
17 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 May
26 May
2-4 wk
1 Jun
9 Jun
0 wk
1 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
2 Jun
4 Jun
0 wk
2 Jun
0 wk
Spinach
Spinacia oleracea
4 – 11 May
21 Jul
3-4 wk
1 Jun
11 Aug
0 wk
29 May
1 Aug
0 wk
Sweet potato
Ipomoea batatas
26 Jun – 10 Jul
4-6 wk
7 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
17 Apr – 1 May
25 Apr
6-8 wk
12 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
24 May – 7 Jun
2 Jun
2-4 wk
21 Jun
3 wk after
14 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
20 Apr – 4 May
19 Jun
4-6 wk
1 Jun
17 Jul
0 wk
Garden pea
Pisum sativum
4 – 11 May
21 Jun
3-4 wk
1 Jun
12 Jul
0 wk
2 Jun
2 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
10 – 24 May
23 May
4-6 wk
21 Jun
3 wk after
Lemon balm
Melissa officinalis
23 Mar – 6 Apr
17 May
8-10 wk
1 Jun
12 Jul
0 wk
26 Jun
2 Jul
4 wk after
Dill
Anethum graveolens
2 Jun
22 Jul
0 wk
Wild chives
Allium schoenoprasum
6 – 20 Apr
31 May
6-8 wk
1 Jun
12 Jul
0 wk
2 Jun
2 Jul
0 wk
Spearmint
Mentha spicata
9 Mar – 6 Apr
17 May
8-12 wk
1 Jun
12 Jul
0 wk
26 Jun
2 Jul
4 wk after
Coriander
Coriandrum sativum
1 Jun
11 Aug
0 wk
14 Jun
1 Aug
2 wk after
Garden sage
Salvia officinalis
29 Mar – 12 Apr
2 May
8-10 wk
7 Jun
27 Jun
1 wk after
Common thyme
Thymus vulgaris
23 Mar – 6 Apr
7 May
8-10 wk
1 Jun
2 Jul
0 wk
Oregano
Origanum vulgare
6 – 20 Apr
21 May
6-8 wk
1 Jun
2 Jul
0 wk
26 Jun
4 wk after
Parsley
Petroselinum crispum
6 – 20 Apr
21 May
6-8 wk
1 Jun
2 Jul
0 wk
2 Jun
22 Jun
0 wk
Rosemary
Salvia rosmarinus
1 – 29 Mar
3 Apr
10-14 wk
7 Jun
12 Jun
1 wk after

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
24 – 31 May
30 May
3-4 wk
21 Jun
3 wk after
Cornflower
Centaurea cyanus
1 Jun
12 Jul
0 wk
2 Jun
2 Jul
0 wk
Statice
Limonium sinuatum
12 – 26 Apr
21 Apr
8-10 wk
21 Jun
3 wk after
Sweet William
Dianthus barbatus
6 – 20 Apr
6-8 wk
1 Jun
0 wk
11 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
26 Apr – 10 May
5 May
6-8 wk
21 Jun
3 wk after
7 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
21 Apr – 5 May
7 May
6-8 wk
16 Jun
18 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
19 Apr – 17 May
4 Jun
4-8 wk
14 Jun
2 Jul
2 wk after
14 Jun
22 Jun
2 wk after
Foxglove
Digitalis purpurea
23 Mar – 6 Apr
8-10 wk
1 Jun
0 wk
14 Jun
2 wk after
Busy lizzie
Impatiens walleriana
12 Apr – 10 May
10 Jun
8-12 wk
5 Jul
5 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
26 Apr – 10 May
15 May
6-8 wk
21 Jun
26 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
10 – 24 May
4-6 wk
21 Jun
3 wk after
Chinese lantern
Physalis alkekengi
29 Mar – 12 Apr
17 Apr
8-10 wk
7 Jun
12 Jun
1 wk after
Love in a mist
Nigella damascena
1 Jun
27 Jun
0 wk
2 Jun
17 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
17 Apr – 1 May
3 May
6-8 wk
12 Jun
14 Jun
2 wk after
21 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
15 Mar – 12 Apr
17 Apr
8-12 wk
7 Jun
12 Jun
1 wk after
Cardoon
Cynara cardunculus
Greenhouse
13 Mar – 10 Apr
18 Mar
8-12 wk
5 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
20 Mar – 17 Apr
23 Apr
8-12 wk
12 Jun
18 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
17 Apr – 1 May
7 May
6-8 wk
12 Jun
18 Jun
2 wk after
Corn poppy
Papaver rhoeas
1 Jun
12 Jul
0 wk
2 Jun
2 Jul
0 wk
Snapdragon
Antirrhinum majus
9 Mar – 6 Apr
7 May
8-12 wk
1 Jun
2 Jul
0 wk
11 Jun
22 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
12 – 26 Apr
9 May
8-10 wk
21 Jun
4 Jul
3 wk after
Sweet pea
Lathyrus odoratus
6 – 27 Apr
28 May
5-8 wk
1 Jun
2 Jul
0 wk
Stock
Matthiola incana
6 – 20 Apr
31 May
6-8 wk
1 Jun
12 Jul
0 wk
14 Jun
2 Jul
2 wk after
Wormwood
Artemisia absinthium
6 – 20 Apr
1 May
6-8 wk
1 Jun
12 Jun
0 wk
14 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
1 – 15 May
16 May
4-6 wk
12 Jun
13 Jun
2 wk after
Garden pansy
Viola × wittrockiana
23 Mar – 6 Apr
17 May
8-10 wk
1 Jun
12 Jul
0 wk
11 Jun
2 Jul
1 wk after
Petunia
Petunia
29 Mar – 26 Apr
21 Apr
8-12 wk
21 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
12 – 26 Apr
1 May
6-8 wk
7 Jun
12 Jun
1 wk after
14 Jul
6 wk after
Common zinnia
Zinnia elegans
10 – 24 May
23 May
4-6 wk
21 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
17 – 31 May
30 May
3-5 wk
21 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
10 – 24 May
21 May
4-6 wk
21 Jun
3 wk after
14 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
12 Apr – 10 May
15 May
8-12 wk
5 Jul
10 Jul
5 wk after
Bee balm
Monarda didyma
9 Mar – 6 Apr
17 Apr
8-12 wk
1 Jun
12 Jun
0 wk
26 Jun
4 wk after
Yarrow
Achillea millefolium
6 – 20 Apr
6-8 wk
1 Jun
0 wk
14 Jun
2 wk after
Safflower
Carthamus tinctorius
1 Jun
12 Jun
0 wk
2 Jun
2 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
6 – 20 Apr
21 May
6-8 wk
1 Jun
2 Jul
0 wk
16 May
22 Jun
2 wk before
Bishop's flower
Ammi majus
20 Apr – 4 May
4 Jun
4-6 wk
1 Jun
2 Jul
0 wk
14 Jun
22 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
20 Mar – 3 Apr
3 Apr
10-12 wk
12 Jun
12 Jun
2 wk after
Sunflower
Helianthus annuus
24 – 31 May
11 Jun
3-4 wk
21 Jun
2 Jul
3 wk after
26 Jun
4 wk after
China aster
Callistephus chinensis
26 Apr – 10 May
31 May
6-8 wk
21 Jun
12 Jul
3 wk after
14 Jul
6 wk after
Annual phlox
Phlox drummondii
17 Apr – 1 May
15 May
6-8 wk
12 Jun
26 Jun
2 wk after
14 Jul
6 wk after
Hollyhock
Alcea rosea
6 – 20 Apr
6-8 wk
1 Jun
0 wk
14 Jun
2 wk after
Alpine delphinium
Delphinium elatum
9 Mar – 6 Apr
17 Apr
8-12 wk
1 Jun
12 Jun
0 wk
26 Jun
4 wk after
African marigold
Tagetes erecta
26 Apr – 10 May
15 May
6-8 wk
21 Jun
26 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
12 – 26 Apr
21 May
6-8 wk
7 Jun
2 Jul
1 wk after
14 Jul
6 wk after
Wood sage
Salvia nemorosa
23 Mar – 6 Apr
7 Apr
8-10 wk
1 Jun
2 Jun
0 wk
26 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
12 Apr – 10 May
9 May
6-10 wk
21 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
1 Jun
12 Jul
0 wk
2 Jun
2 Jul
0 wk
Painted tongue
Salpiglossis sinuata
12 – 26 Apr
3 May
8-10 wk
21 Jun
28 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
6 – 20 Apr
1 May
6-8 wk
1 Jun
12 Jun
0 wk
14 Jun
2 wk after