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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 137 days 29 May – 13 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
9 Jun
5-7 wk
29 May
14 Jul
0 wk
30 May
4 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
17 Apr – 1 May
21 Jun
4-6 wk
29 May
19 Jul
0 wk
30 May
9 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
4 Jun
5-7 wk
29 May
9 Jul
0 wk
29 May
29 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
1 Jun
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
24 Mar
8-12 wk
29 May
0 wk
11 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
26 May
9 Jun
0 wk
26 May
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
28 Jun
3-4 wk
31 May
19 Jul
0 wk
11 Jun
9 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 May
29 Jun
0 wk
29 May
19 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Apr
4 Jun
5-7 wk
29 May
9 Jul
0 wk
29 May
29 Jun
0 wk
Potato
Solanum tuberosum
Fleece
18 Apr – 2 May
31 May
4-6 wk
30 May
28 Jun
0 wk
30 May
18 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Apr
14 Jun
5-7 wk
29 May
19 Jul
0 wk
30 May
9 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
7 – 14 May
30 May
3-4 wk
4 Jun
20 Jun
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 May
22 May
3-4 wk
31 May
12 Jun
0 wk
11 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
17 Apr – 1 May
16 Jun
4-6 wk
29 May
14 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 May
3 Jul
3-4 wk
29 May
24 Jul
0 wk
30 May
14 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 Apr – 1 May
16 Jun
4-6 wk
29 May
14 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
1 – 15 May
26 May
2-4 wk
29 May
9 Jun
0 wk
29 May
30 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
26 May
9 Jun
0 wk
26 May
30 May
0 wk
Spinach
Spinacia oleracea
1 – 8 May
18 Jul
3-4 wk
29 May
8 Aug
0 wk
26 May
29 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
1 Jun
2-4 wk
29 May
15 Jun
0 wk
11 Jun
2 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
17 Apr – 1 May
16 Jun
4-6 wk
29 May
14 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 May
18 Jun
3-4 wk
29 May
9 Jul
0 wk
30 May
29 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
8 May
4-6 wk
4 Jun
5 Jun
1 wk after
Lemon balm
Melissa officinalis
20 Mar – 3 Apr
14 May
8-10 wk
29 May
9 Jul
0 wk
23 Jun
29 Jun
4 wk after
Dill
Anethum graveolens
30 May
19 Jul
0 wk
Wild chives
Allium schoenoprasum
3 – 17 Apr
28 May
6-8 wk
29 May
9 Jul
0 wk
30 May
29 Jun
0 wk
Spearmint
Mentha spicata
6 Mar – 3 Apr
14 May
8-12 wk
29 May
9 Jul
0 wk
23 Jun
29 Jun
4 wk after
Coriander
Coriandrum sativum
29 May
8 Aug
0 wk
11 Jun
29 Jul
2 wk after
Garden sage
Salvia officinalis
22 Mar – 5 Apr
29 Apr
8-10 wk
31 May
24 Jun
0 wk
Common thyme
Thymus vulgaris
20 Mar – 3 Apr
4 May
8-10 wk
29 May
29 Jun
0 wk
Oregano
Origanum vulgare
3 – 17 Apr
18 May
6-8 wk
29 May
29 Jun
0 wk
23 Jun
4 wk after
Parsley
Petroselinum crispum
3 – 17 Apr
18 May
6-8 wk
29 May
29 Jun
0 wk
30 May
19 Jun
0 wk
Rosemary
Salvia rosmarinus
22 Feb – 22 Mar
31 Mar
10-14 wk
31 May
9 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
15 May
3-4 wk
4 Jun
5 Jun
1 wk after
Cornflower
Centaurea cyanus
29 May
9 Jul
0 wk
30 May
29 Jun
0 wk
Statice
Limonium sinuatum
Fleece
26 Mar – 9 Apr
21 Apr
8-10 wk
4 Jun
16 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
5 May
6-8 wk
4 Jun
16 Jun
1 wk after
18 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
5 – 19 Apr
5 May
6-8 wk
31 May
16 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
9 Apr – 7 May
1 Jun
4-8 wk
4 Jun
29 Jun
1 wk after
4 Jun
19 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
26 May
8-12 wk
11 Jun
21 Jul
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
9 – 23 Apr
15 May
6-8 wk
4 Jun
26 Jun
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
14 Apr
8-10 wk
31 May
9 Jun
0 wk
Love in a mist
Nigella damascena
29 May
24 Jun
0 wk
30 May
14 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
9 – 23 Apr
25 Apr
6-8 wk
4 Jun
6 Jun
1 wk after
18 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
8 Mar – 5 Apr
14 Apr
8-12 wk
31 May
9 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
12 Mar – 9 Apr
15 Mar
8-12 wk
4 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
12 Mar – 9 Apr
31 Mar
8-12 wk
4 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
9 – 23 Apr
14 Apr
6-8 wk
4 Jun
1 wk after
Corn poppy
Papaver rhoeas
29 May
9 Jul
0 wk
30 May
29 Jun
0 wk
Snapdragon
Antirrhinum majus
6 Mar – 3 Apr
4 May
8-12 wk
29 May
29 Jun
0 wk
8 Jun
19 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
2 – 16 Apr
1 May
8-10 wk
11 Jun
26 Jun
2 wk after
Sweet pea
Lathyrus odoratus
3 – 24 Apr
25 May
5-8 wk
29 May
29 Jun
0 wk
Stock
Matthiola incana
3 – 17 Apr
28 May
6-8 wk
29 May
9 Jul
0 wk
11 Jun
29 Jun
2 wk after
Wormwood
Artemisia absinthium
3 – 17 Apr
28 Apr
6-8 wk
29 May
9 Jun
0 wk
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
23 Apr – 7 May
23 Apr
4-6 wk
4 Jun
1 wk after
Garden pansy
Viola × wittrockiana
20 Mar – 3 Apr
14 May
8-10 wk
29 May
9 Jul
0 wk
8 Jun
29 Jun
1 wk after
Petunia
Petunia
Fleece
12 Mar – 9 Apr
21 Apr
8-12 wk
4 Jun
16 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Apr
28 Apr
6-8 wk
31 May
9 Jun
0 wk
11 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
23 Apr – 7 May
8 May
4-6 wk
4 Jun
5 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
30 Apr – 14 May
15 May
3-5 wk
4 Jun
5 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
23 Apr – 7 May
19 May
4-6 wk
4 Jun
16 Jun
1 wk after
23 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
19 Mar – 16 Apr
30 Apr
8-12 wk
11 Jun
25 Jun
2 wk after
Bee balm
Monarda didyma
6 Mar – 3 Apr
14 Apr
8-12 wk
29 May
9 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
9 Jun
0 wk
30 May
30 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
3 – 17 Apr
18 May
6-8 wk
29 May
29 Jun
0 wk
13 May
19 Jun
2 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
1 Jun
4-6 wk
29 May
29 Jun
0 wk
11 Jun
19 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
12 – 26 Mar
18 Mar
10-12 wk
4 Jun
1 wk after
Sunflower
Helianthus annuus
14 – 21 May
8 Jun
3-4 wk
11 Jun
29 Jun
2 wk after
23 Jun
4 wk after
China aster
Callistephus chinensis
16 – 30 Apr
28 May
6-8 wk
11 Jun
9 Jul
2 wk after
11 Jul
6 wk after
Annual phlox
Phlox drummondii
Fleece
3 – 17 Apr
15 May
6-8 wk
29 May
26 Jun
0 wk
23 Jun
4 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
14 Apr
8-12 wk
29 May
9 Jun
0 wk
23 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
9 – 23 Apr
15 May
6-8 wk
4 Jun
26 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Apr
18 May
6-8 wk
31 May
29 Jun
0 wk
11 Jul
6 wk after
Wood sage
Salvia nemorosa
20 Mar – 3 Apr
4 Apr
8-10 wk
29 May
30 May
0 wk
23 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
26 Mar – 23 Apr
24 Apr
6-10 wk
4 Jun
5 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
29 May
9 Jul
0 wk
30 May
29 Jun
0 wk
Painted tongue
Salpiglossis sinuata
2 – 16 Apr
4 May
8-10 wk
11 Jun
29 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
3 – 17 Apr
28 Apr
6-8 wk
29 May
9 Jun
0 wk
11 Jun
2 wk after