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Rel. frost
Last spring frost (0°C) 28 May Frost 9 of 10 years · 20 years of data
Frost-free season 40 days 28 May – 7 Jul
Probability that frost is over

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