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Rel. frost
Last spring frost (0°C) 29 May Frost 1 of 10 years · 20 years of data
Frost-free season 128 days 29 May – 4 Oct
Probability that frost is over

90% = 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
10 Jun
5-7 wk
29 May
15 Jul
0 wk
30 May
5 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
17 Apr – 1 May
22 Jun
4-6 wk
29 May
20 Jul
0 wk
30 May
10 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
5 Jun
5-7 wk
29 May
10 Jul
0 wk
29 May
30 Jun
0 wk
Garden cucumber
Cucumis sativus
Season too short
7 – 14 May
3-4 wk
4 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)
6 Mar – 3 Apr
22 Mar
8-12 wk
29 May
0 wk
11 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
6 Jun
0 wk
30 May
0 wk
Maize
Zea mays
Season too short
1 – 8 May
3-4 wk
29 May
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 May
29 Jun
3-4 wk
31 May
20 Jul
0 wk
11 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 May
30 Jun
0 wk
29 May
20 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Apr
5 Jun
5-7 wk
29 May
10 Jul
0 wk
29 May
30 Jun
0 wk
Potato
Solanum tuberosum
Fleece
18 Apr – 2 May
29 May
4-6 wk
30 May
26 Jun
0 wk
30 May
16 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Apr
15 Jun
5-7 wk
29 May
20 Jul
0 wk
30 May
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
14 – 21 May
3-4 wk
11 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 May
30 May
3-4 wk
31 May
20 Jun
0 wk
11 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
17 Apr – 1 May
17 Jun
4-6 wk
29 May
15 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 May
4 Jul
3-4 wk
29 May
25 Jul
0 wk
30 May
15 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 Apr – 1 May
17 Jun
4-6 wk
29 May
15 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
1 – 15 May
27 May
2-4 wk
29 May
10 Jun
0 wk
29 May
31 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 May
6 Jun
0 wk
30 May
0 wk
Spinach
Spinacia oleracea
1 – 8 May
19 Jul
3-4 wk
29 May
9 Aug
0 wk
26 May
30 Jul
0 wk
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Season too short
3 – 17 Apr
6-8 wk
29 May
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Greenhouse
1 – 15 May
21 May
2-4 wk
29 May
4 Jun
0 wk
11 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
17 Apr – 1 May
17 Jun
4-6 wk
29 May
15 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 May
19 Jun
3-4 wk
29 May
10 Jul
0 wk
30 May
30 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
27 Apr
4-6 wk
4 Jun
1 wk after
Lemon balm
Melissa officinalis
20 Mar – 3 Apr
15 May
8-10 wk
29 May
10 Jul
0 wk
23 Jun
30 Jun
4 wk after
Dill
Anethum graveolens
30 May
20 Jul
0 wk
Wild chives
Allium schoenoprasum
3 – 17 Apr
29 May
6-8 wk
29 May
10 Jul
0 wk
30 May
30 Jun
0 wk
Spearmint
Mentha spicata
6 Mar – 3 Apr
15 May
8-12 wk
29 May
10 Jul
0 wk
23 Jun
30 Jun
4 wk after
Coriander
Coriandrum sativum
29 May
9 Aug
0 wk
11 Jun
30 Jul
2 wk after
Garden sage
Salvia officinalis
22 Mar – 5 Apr
30 Apr
8-10 wk
31 May
25 Jun
0 wk
Common thyme
Thymus vulgaris
20 Mar – 3 Apr
5 May
8-10 wk
29 May
30 Jun
0 wk
Oregano
Origanum vulgare
3 – 17 Apr
19 May
6-8 wk
29 May
30 Jun
0 wk
23 Jun
4 wk after
Parsley
Petroselinum crispum
3 – 17 Apr
19 May
6-8 wk
29 May
30 Jun
0 wk
30 May
20 Jun
0 wk
Rosemary
Salvia rosmarinus
22 Feb – 22 Mar
1 Apr
10-14 wk
31 May
10 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
3-4 wk
4 Jun
1 wk after
Cornflower
Centaurea cyanus
29 May
10 Jul
0 wk
30 May
30 Jun
0 wk
Statice
Limonium sinuatum
Greenhouse
20 Mar – 3 Apr
23 Apr
8-10 wk
29 May
18 Jun
0 wk
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
Greenhouse
3 – 17 Apr
7 May
6-8 wk
29 May
18 Jun
0 wk
30 Jun
5 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
5 – 19 Apr
30 Apr
6-8 wk
31 May
11 Jun
0 wk
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
Fleece
19 Mar – 16 Apr
15 May
8-12 wk
11 Jun
10 Jul
2 wk after
Creeping zinnia
Sanvitalia procumbens
16 – 30 Apr
6-8 wk
11 Jun
2 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
15 Apr
8-10 wk
31 May
10 Jun
0 wk
Love in a mist
Nigella damascena
29 May
25 Jun
0 wk
30 May
15 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
3 – 17 Apr
27 Apr
6-8 wk
29 May
8 Jun
0 wk
30 Jun
5 wk after
Purple-top vervain
Verbena bonariensis
8 Mar – 5 Apr
15 Apr
8-12 wk
31 May
10 Jun
0 wk
Cardoon
Cynara cardunculus
19 Mar – 16 Apr
8-12 wk
11 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Season too short
12 Mar – 9 Apr
20 Mar
8-12 wk
4 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Season too short
9 – 23 Apr
6-8 wk
4 Jun
1 wk after
Corn poppy
Papaver rhoeas
29 May
10 Jul
0 wk
30 May
30 Jun
0 wk
Snapdragon
Antirrhinum majus
6 Mar – 3 Apr
5 May
8-12 wk
29 May
30 Jun
0 wk
8 Jun
20 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
2 – 16 Apr
8 Apr
8-10 wk
11 Jun
2 wk after
Sweet pea
Lathyrus odoratus
3 – 24 Apr
26 May
5-8 wk
29 May
30 Jun
0 wk
Stock
Matthiola incana
3 – 17 Apr
29 May
6-8 wk
29 May
10 Jul
0 wk
11 Jun
30 Jun
2 wk after
Wormwood
Artemisia absinthium
3 – 17 Apr
29 Apr
6-8 wk
29 May
10 Jun
0 wk
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
23 Apr – 7 May
4-6 wk
4 Jun
1 wk after
Garden pansy
Viola × wittrockiana
20 Mar – 3 Apr
15 May
8-10 wk
29 May
10 Jul
0 wk
8 Jun
30 Jun
1 wk after
Petunia
Petunia
Greenhouse
6 Mar – 3 Apr
23 Apr
8-12 wk
29 May
18 Jun
0 wk
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Apr
29 Apr
6-8 wk
31 May
10 Jun
0 wk
11 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
23 Apr – 7 May
27 Apr
4-6 wk
4 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
30 Apr – 14 May
4 May
3-5 wk
4 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
23 Apr – 7 May
14 May
4-6 wk
4 Jun
11 Jun
1 wk after
23 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
19 Mar – 16 Apr
19 Apr
8-12 wk
11 Jun
14 Jun
2 wk after
Bee balm
Monarda didyma
6 Mar – 3 Apr
15 Apr
8-12 wk
29 May
10 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
10 Jun
0 wk
30 May
31 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
3 – 17 Apr
19 May
6-8 wk
29 May
30 Jun
0 wk
13 May
20 Jun
2 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
2 Jun
4-6 wk
29 May
30 Jun
0 wk
11 Jun
20 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
12 – 26 Mar
13 Mar
10-12 wk
4 Jun
1 wk after
Sunflower
Helianthus annuus
14 – 21 May
9 Jun
3-4 wk
11 Jun
30 Jun
2 wk after
23 Jun
4 wk after
China aster
Callistephus chinensis
16 – 30 Apr
29 May
6-8 wk
11 Jun
10 Jul
2 wk after
11 Jul
6 wk after
Annual phlox
Phlox drummondii
9 – 23 Apr
13 Apr
6-8 wk
4 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
15 Apr
8-12 wk
29 May
10 Jun
0 wk
23 Jun
4 wk after
African marigold
Tagetes erecta
16 – 30 Apr
6-8 wk
11 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Apr
19 May
6-8 wk
31 May
30 Jun
0 wk
11 Jul
6 wk after
Wood sage
Salvia nemorosa
20 Mar – 3 Apr
5 Apr
8-10 wk
29 May
31 May
0 wk
23 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
26 Mar – 23 Apr
13 Apr
6-10 wk
4 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
29 May
10 Jul
0 wk
30 May
30 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
29 Apr
6-8 wk
29 May
10 Jun
0 wk
11 Jun
2 wk after