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Method
Rel. frost
Last spring frost (0°C) 26 May Normal year · 20 years of data
Frost-free season 119 days 26 May – 22 Sep
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)
7 – 21 Apr
15 Jun
5-7 wk
26 May
20 Jul
0 wk
30 May
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
27 Jun
4-6 wk
26 May
25 Jul
0 wk
30 May
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
18 Mar – 15 Apr
1 Apr
8-12 wk
10 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
7 – 21 Apr
10 Jun
5-7 wk
26 May
15 Jul
0 wk
26 May
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
25 May – 1 Jun
26 May
3-4 wk
22 Jun
4 wk after
Florence Fennel
Foeniculum vulgare
3 – 10 Jun
4-5 wk
8 Jul
6 wk after
14 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
15 – 22 Jun
3-4 wk
13 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
3 – 31 Mar
23 Mar
8-12 wk
26 May
0 wk
16 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
7 Jun
1 wk after
30 May
1 wk after
Maize
Zea mays
Fleece
13 – 20 May
16 May
3-4 wk
10 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
28 Jun
3-4 wk
3 Jun
19 Jul
1 wk after
16 Jun
9 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
5 Jul
0 wk
26 May
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Apr
10 Jun
5-7 wk
26 May
15 Jul
0 wk
26 May
5 Jul
0 wk
Potato
Solanum tuberosum
30 Apr – 14 May
21 May
4-6 wk
11 Jun
18 Jun
2 wk after
11 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
20 Jun
5-7 wk
26 May
25 Jul
0 wk
30 May
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
10 – 17 Jun
3-4 wk
8 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
6 – 13 May
31 May
3-4 wk
3 Jun
21 Jun
1 wk after
16 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Lettuce
Lactuca sativa
28 Apr – 5 May
9 Jul
3-4 wk
26 May
30 Jul
0 wk
30 May
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
28 Apr – 12 May
28 May
2-4 wk
26 May
11 Jun
0 wk
26 May
1 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 May
7 Jun
1 wk after
30 May
1 wk after
Spinach
Spinacia oleracea
28 Apr – 5 May
24 Jul
3-4 wk
26 May
14 Aug
0 wk
22 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
27 Jun – 11 Jul
4-6 wk
8 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
15 – 29 Apr
25 Apr
6-8 wk
10 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
25 May – 8 Jun
2 Jun
2-4 wk
22 Jun
4 wk after
14 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
22 Jun
4-6 wk
26 May
20 Jul
0 wk
Garden pea
Pisum sativum
28 Apr – 5 May
24 Jun
3-4 wk
26 May
15 Jul
0 wk
30 May
5 Jul
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
Fleece
11 – 25 May
26 May
4-6 wk
22 Jun
23 Jun
4 wk after
Lemon balm
Melissa officinalis
17 – 31 Mar
20 May
8-10 wk
26 May
15 Jul
0 wk
30 Jun
5 Jul
5 wk after
Dill
Anethum graveolens
30 May
19 Jul
1 wk after
Wild chives
Allium schoenoprasum
31 Mar – 14 Apr
3 Jun
6-8 wk
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Spearmint
Mentha spicata
3 – 31 Mar
20 May
8-12 wk
26 May
15 Jul
0 wk
30 Jun
5 Jul
5 wk after
Coriander
Coriandrum sativum
26 May
8 Aug
0 wk
16 Jun
29 Jul
3 wk after
Garden sage
Salvia officinalis
25 Mar – 8 Apr
5 May
8-10 wk
3 Jun
30 Jun
1 wk after
Common thyme
Thymus vulgaris
17 – 31 Mar
10 May
8-10 wk
26 May
5 Jul
0 wk
Oregano
Origanum vulgare
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
30 Jun
5 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
30 May
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
25 Feb – 25 Mar
29 Mar
10-14 wk
3 Jun
7 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
25 May – 1 Jun
2 Jun
3-4 wk
22 Jun
23 Jun
4 wk after
Cornflower
Centaurea cyanus
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Statice
Limonium sinuatum
13 – 27 Apr
23 Apr
8-10 wk
22 Jun
4 wk after
Sweet William
Dianthus barbatus
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
11 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
27 Apr – 11 May
7 May
6-8 wk
22 Jun
4 wk after
8 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
19 Apr – 3 May
13 May
6-8 wk
14 Jun
24 Jun
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
5 May – 2 Jun
27 May
4-8 wk
30 Jun
5 wk after
30 Jun
5 wk after
Foxglove
Digitalis purpurea
17 – 31 Mar
8-10 wk
26 May
0 wk
16 Jun
3 wk after
Busy lizzie
Impatiens walleriana
15 Apr – 13 May
13 Jun
8-12 wk
8 Jul
8 Aug
6 wk after
Creeping zinnia
Sanvitalia procumbens
27 Apr – 11 May
17 May
6-8 wk
22 Jun
28 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
11 – 25 May
4-6 wk
22 Jun
4 wk after
Chinese lantern
Physalis alkekengi
25 Mar – 8 Apr
14 Apr
8-10 wk
3 Jun
9 Jun
1 wk after
Love in a mist
Nigella damascena
26 May
30 Jun
0 wk
30 May
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
27 Apr – 11 May
27 Apr
6-8 wk
22 Jun
4 wk after
8 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
11 Mar – 8 Apr
14 Apr
8-12 wk
3 Jun
9 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
18 Mar – 15 Apr
21 Mar
8-12 wk
10 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
30 Mar – 27 Apr
18 Apr
8-12 wk
22 Jun
4 wk after
Globe amaranth
Gomphrena globosa
Fleece
27 Apr – 11 May
2 May
6-8 wk
22 Jun
4 wk after
Corn poppy
Papaver rhoeas
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
3 – 31 Mar
10 May
8-12 wk
26 May
5 Jul
0 wk
11 Jun
25 Jun
2 wk after
Flossflower
Ageratum houstonianum
29 Apr – 13 May
3 May
8-10 wk
8 Jul
6 wk after
Sweet pea
Lathyrus odoratus
31 Mar – 21 Apr
31 May
5-8 wk
26 May
5 Jul
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
3 Jun
6-8 wk
26 May
15 Jul
0 wk
16 Jun
5 Jul
3 wk after
Wormwood
Artemisia absinthium
31 Mar – 14 Apr
4 May
6-8 wk
26 May
15 Jun
0 wk
16 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
11 – 25 May
11 May
4-6 wk
22 Jun
4 wk after
Garden pansy
Viola × wittrockiana
17 – 31 Mar
20 May
8-10 wk
26 May
15 Jul
0 wk
11 Jun
5 Jul
2 wk after
Petunia
Petunia
30 Mar – 27 Apr
23 Apr
8-12 wk
22 Jun
4 wk after
Sweet Scabious
Scabiosa atropurpurea
8 – 22 Apr
28 Apr
6-8 wk
3 Jun
9 Jun
1 wk after
14 Jul
7 wk after
Common zinnia
Zinnia elegans
11 – 25 May
26 May
4-6 wk
22 Jun
23 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Fleece
18 May – 1 Jun
2 Jun
3-5 wk
22 Jun
23 Jun
4 wk after
Garden cosmos
Cosmos bipinnatus
11 – 25 May
27 May
4-6 wk
22 Jun
24 Jun
4 wk after
14 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
15 Apr – 13 May
18 May
8-12 wk
8 Jul
13 Jul
6 wk after
Bee balm
Monarda didyma
3 – 31 Mar
20 Apr
8-12 wk
26 May
15 Jun
0 wk
30 Jun
5 wk after
Yarrow
Achillea millefolium
31 Mar – 14 Apr
4 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Safflower
Carthamus tinctorius
26 May
15 Jun
0 wk
30 May
5 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
31 Mar – 14 Apr
24 May
6-8 wk
26 May
5 Jul
0 wk
8 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
7 Jun
4-6 wk
26 May
5 Jul
0 wk
16 Jun
25 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Fleece
30 Mar – 13 Apr
10-12 wk
22 Jun
4 wk after
Sunflower
Helianthus annuus
25 May – 1 Jun
6 Jun
3-4 wk
22 Jun
27 Jun
4 wk after
30 Jun
5 wk after
China aster
Callistephus chinensis
27 Apr – 11 May
26 May
6-8 wk
22 Jun
7 Jul
4 wk after
14 Jul
7 wk after
Annual phlox
Phlox drummondii
15 – 29 Apr
17 May
6-8 wk
10 Jun
28 Jun
2 wk after
14 Jul
7 wk after
Hollyhock
Alcea rosea
31 Mar – 14 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Alpine delphinium
Delphinium elatum
3 – 31 Mar
20 Apr
8-12 wk
26 May
15 Jun
0 wk
30 Jun
5 wk after
African marigold
Tagetes erecta
27 Apr – 11 May
17 May
6-8 wk
22 Jun
28 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
8 – 22 Apr
16 May
6-8 wk
3 Jun
27 Jun
1 wk after
14 Jul
7 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
10 Apr
8-10 wk
26 May
5 Jun
0 wk
30 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
13 Apr – 11 May
12 May
6-10 wk
22 Jun
23 Jun
4 wk after
California goldenpoppy
Eschscholzia californica
26 May
15 Jul
0 wk
30 May
5 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
13 – 27 Apr
27 Apr
8-10 wk
22 Jun
22 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
31 Mar – 14 Apr
4 May
6-8 wk
26 May
15 Jun
0 wk
16 Jun
3 wk after