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Rel. frost
Last spring frost (0°C) 29 May Frost 1 of 4 years · 20 years of data
Frost-free season 127 days 29 May – 3 Oct
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)
10 – 24 Apr
8 Jun
5-7 wk
29 May
13 Jul
0 wk
30 May
3 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
17 Apr – 1 May
20 Jun
4-6 wk
29 May
18 Jul
0 wk
30 May
8 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
12 Mar – 9 Apr
8-12 wk
4 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
10 – 24 Apr
3 Jun
5-7 wk
29 May
8 Jul
0 wk
29 May
28 Jun
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
7 – 14 May
21 May
3-4 wk
4 Jun
11 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
26 May – 2 Jun
31 May
4-5 wk
30 Jun
5 wk after
11 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
9 – 16 Jun
3-4 wk
7 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
6 Mar – 3 Apr
24 Mar
8-12 wk
29 May
0 wk
29 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
26 May
1 Jun
0 wk
26 May
0 wk
Maize
Zea mays
Greenhouse
1 – 8 May
11 May
3-4 wk
29 May
1 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 May
27 Jun
3-4 wk
31 May
18 Jul
0 wk
11 Jun
8 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 May
28 Jun
0 wk
29 May
18 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Apr
3 Jun
5-7 wk
29 May
8 Jul
0 wk
29 May
28 Jun
0 wk
Potato
Solanum tuberosum
Fleece
18 Apr – 2 May
15 May
4-6 wk
30 May
12 Jun
0 wk
30 May
2 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Apr
13 Jun
5-7 wk
29 May
18 Jul
0 wk
30 May
8 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
7 – 14 May
24 Jun
3-4 wk
4 Jun
15 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
1 – 8 May
20 May
3-4 wk
29 May
10 Jun
0 wk
4 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
17 Apr – 1 May
15 Jun
4-6 wk
29 May
13 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 May
2 Jul
3-4 wk
29 May
23 Jul
0 wk
30 May
13 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 Apr – 1 May
15 Jun
4-6 wk
29 May
13 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
1 – 15 May
14 May
2-4 wk
29 May
0 wk
29 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
26 May
1 Jun
0 wk
26 May
0 wk
Spinach
Spinacia oleracea
1 – 8 May
17 Jul
3-4 wk
29 May
7 Aug
0 wk
26 May
28 Jul
0 wk
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
3 – 17 Apr
20 Apr
6-8 wk
29 May
1 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
7 – 21 May
28 May
2-4 wk
4 Jun
11 Jun
1 wk after
23 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
17 Apr – 1 May
15 Jun
4-6 wk
29 May
13 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 May
17 Jun
3-4 wk
29 May
8 Jul
0 wk
30 May
28 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
Greenhouse
23 Apr – 7 May
2 Jun
4-6 wk
4 Jun
30 Jun
1 wk after
Lemon balm
Melissa officinalis
20 Mar – 3 Apr
13 May
8-10 wk
29 May
8 Jul
0 wk
23 Jun
28 Jun
4 wk after
Dill
Anethum graveolens
30 May
18 Jul
0 wk
Wild chives
Allium schoenoprasum
3 – 17 Apr
27 May
6-8 wk
29 May
8 Jul
0 wk
30 May
28 Jun
0 wk
Spearmint
Mentha spicata
6 Mar – 3 Apr
13 May
8-12 wk
29 May
8 Jul
0 wk
23 Jun
28 Jun
4 wk after
Coriander
Coriandrum sativum
29 May
7 Aug
0 wk
11 Jun
28 Jul
2 wk after
Garden sage
Salvia officinalis
22 Mar – 5 Apr
28 Apr
8-10 wk
31 May
23 Jun
0 wk
Common thyme
Thymus vulgaris
20 Mar – 3 Apr
3 May
8-10 wk
29 May
28 Jun
0 wk
Oregano
Origanum vulgare
3 – 17 Apr
17 May
6-8 wk
29 May
28 Jun
0 wk
23 Jun
4 wk after
Parsley
Petroselinum crispum
3 – 17 Apr
17 May
6-8 wk
29 May
28 Jun
0 wk
30 May
18 Jun
0 wk
Rosemary
Salvia rosmarinus
22 Feb – 22 Mar
30 Mar
10-14 wk
31 May
8 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
Greenhouse
7 – 14 May
9 Jun
3-4 wk
4 Jun
30 Jun
1 wk after
Cornflower
Centaurea cyanus
29 May
8 Jul
0 wk
30 May
28 Jun
0 wk
Statice
Limonium sinuatum
Fleece
26 Mar – 9 Apr
3 May
8-10 wk
4 Jun
28 Jun
1 wk after
Sweet William
Dianthus barbatus
3 – 17 Apr
6-8 wk
29 May
0 wk
8 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
9 – 23 Apr
17 May
6-8 wk
4 Jun
28 Jun
1 wk after
18 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
14 – 28 Apr
9 May
6-8 wk
9 Jun
20 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
9 Apr – 7 May
31 May
4-8 wk
4 Jun
28 Jun
1 wk after
4 Jun
18 Jun
1 wk after
Foxglove
Digitalis purpurea
20 Mar – 3 Apr
8-10 wk
29 May
0 wk
11 Jun
2 wk after
Busy lizzie
Impatiens walleriana
7 Apr – 5 May
22 May
8-12 wk
30 Jun
17 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
9 – 23 Apr
27 May
6-8 wk
4 Jun
8 Jul
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
30 Apr – 14 May
4-6 wk
11 Jun
2 wk after
Chinese lantern
Physalis alkekengi
22 Mar – 5 Apr
13 Apr
8-10 wk
31 May
8 Jun
0 wk
Love in a mist
Nigella damascena
29 May
23 Jun
0 wk
30 May
13 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
9 – 23 Apr
7 May
6-8 wk
4 Jun
18 Jun
1 wk after
18 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
8 Mar – 5 Apr
13 Apr
8-12 wk
31 May
8 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
6 Mar – 3 Apr
14 Mar
8-12 wk
29 May
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
12 Mar – 9 Apr
25 Apr
8-12 wk
4 Jun
20 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
9 – 23 Apr
9 May
6-8 wk
4 Jun
20 Jun
1 wk after
Corn poppy
Papaver rhoeas
29 May
8 Jul
0 wk
30 May
28 Jun
0 wk
Snapdragon
Antirrhinum majus
6 Mar – 3 Apr
3 May
8-12 wk
29 May
28 Jun
0 wk
8 Jun
18 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
2 – 16 Apr
13 May
8-10 wk
11 Jun
8 Jul
2 wk after
Sweet pea
Lathyrus odoratus
3 – 24 Apr
24 May
5-8 wk
29 May
28 Jun
0 wk
Stock
Matthiola incana
3 – 17 Apr
27 May
6-8 wk
29 May
8 Jul
0 wk
11 Jun
28 Jun
2 wk after
Wormwood
Artemisia absinthium
3 – 17 Apr
27 Apr
6-8 wk
29 May
8 Jun
0 wk
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
23 Apr – 7 May
18 May
4-6 wk
4 Jun
15 Jun
1 wk after
Garden pansy
Viola × wittrockiana
20 Mar – 3 Apr
13 May
8-10 wk
29 May
8 Jul
0 wk
8 Jun
28 Jun
1 wk after
Petunia
Petunia
Fleece
12 Mar – 9 Apr
3 May
8-12 wk
4 Jun
28 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Apr
27 Apr
6-8 wk
31 May
8 Jun
0 wk
11 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
23 Apr – 7 May
2 Jun
4-6 wk
4 Jun
30 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
30 Apr – 14 May
9 Jun
3-5 wk
4 Jun
30 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
23 Apr – 7 May
31 May
4-6 wk
4 Jun
28 Jun
1 wk after
23 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
19 Mar – 16 Apr
25 May
8-12 wk
11 Jun
20 Jul
2 wk after
Bee balm
Monarda didyma
6 Mar – 3 Apr
13 Apr
8-12 wk
29 May
8 Jun
0 wk
23 Jun
4 wk after
Yarrow
Achillea millefolium
3 – 17 Apr
6-8 wk
29 May
0 wk
11 Jun
2 wk after
Safflower
Carthamus tinctorius
29 May
8 Jun
0 wk
30 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
3 – 17 Apr
17 May
6-8 wk
29 May
28 Jun
0 wk
13 May
18 Jun
2 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
31 May
4-6 wk
29 May
28 Jun
0 wk
11 Jun
18 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
12 – 26 Mar
30 Mar
10-12 wk
4 Jun
8 Jun
1 wk after
Sunflower
Helianthus annuus
14 – 21 May
7 Jun
3-4 wk
11 Jun
28 Jun
2 wk after
23 Jun
4 wk after
China aster
Callistephus chinensis
16 – 30 Apr
27 May
6-8 wk
11 Jun
8 Jul
2 wk after
11 Jul
6 wk after
Annual phlox
Phlox drummondii
9 – 23 Apr
13 May
6-8 wk
4 Jun
24 Jun
1 wk after
11 Jul
6 wk after
Hollyhock
Alcea rosea
3 – 17 Apr
6-8 wk
29 May
0 wk
11 Jun
2 wk after
Alpine delphinium
Delphinium elatum
6 Mar – 3 Apr
13 Apr
8-12 wk
29 May
8 Jun
0 wk
23 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
9 – 23 Apr
27 May
6-8 wk
4 Jun
8 Jul
1 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Apr
17 May
6-8 wk
31 May
28 Jun
0 wk
11 Jul
6 wk after
Wood sage
Salvia nemorosa
20 Mar – 3 Apr
3 Apr
8-10 wk
29 May
29 May
0 wk
23 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
26 Mar – 23 Apr
19 May
6-10 wk
4 Jun
30 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
29 May
8 Jul
0 wk
30 May
28 Jun
0 wk
Painted tongue
Salpiglossis sinuata
2 – 16 Apr
3 May
8-10 wk
11 Jun
28 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
3 – 17 Apr
27 Apr
6-8 wk
29 May
8 Jun
0 wk
11 Jun
2 wk after