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Method
Rel. frost
Last spring frost (0°C) 26 May Normal year · 20 years of data
Frost-free season 118 days 26 May – 21 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
14 Jun
5-7 wk
26 May
19 Jul
0 wk
30 May
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
14 – 28 Apr
26 Jun
4-6 wk
26 May
24 Jul
0 wk
30 May
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
9 Mar – 6 Apr
6 Apr
8-12 wk
1 Jun
1 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
7 – 21 Apr
9 Jun
5-7 wk
26 May
14 Jul
0 wk
26 May
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
11 – 18 May
31 May
3-4 wk
8 Jun
21 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
Fleece
4 – 11 May
2 Jun
4-5 wk
8 Jun
30 Jun
2 wk after
30 Jun
5 wk after
Butter bean
Phaseolus lunatus
Season too short
6 – 13 Jun
3-4 wk
4 Jul
6 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
4 – 11 May
21 May
3-4 wk
1 Jun
11 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
30 Apr – 7 May
29 Jun
3-4 wk
28 May
20 Jul
0 wk
16 Jun
10 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
26 May
4 Jul
0 wk
26 May
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
7 – 21 Apr
9 Jun
5-7 wk
26 May
14 Jul
0 wk
26 May
4 Jul
0 wk
Potato
Solanum tuberosum
30 Apr – 14 May
20 May
4-6 wk
11 Jun
17 Jun
2 wk after
11 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
7 – 21 Apr
19 Jun
5-7 wk
26 May
24 Jul
0 wk
30 May
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
30 May – 6 Jun
5 Jun
3-4 wk
27 Jun
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
30 Apr – 7 May
30 May
3-4 wk
28 May
20 Jun
0 wk
16 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
14 – 28 Apr
21 Jun
4-6 wk
26 May
19 Jul
0 wk
Lettuce
Lactuca sativa
28 Apr – 5 May
8 Jul
3-4 wk
26 May
29 Jul
0 wk
30 May
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
14 – 28 Apr
21 Jun
4-6 wk
26 May
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
28 Apr – 12 May
26 May
2-4 wk
26 May
9 Jun
0 wk
26 May
30 May
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
23 Jul
3-4 wk
26 May
13 Aug
0 wk
22 May
3 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
6 – 20 Apr
30 Apr
6-8 wk
1 Jun
11 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
11 – 25 May
7 Jun
2-4 wk
8 Jun
21 Jun
2 wk after
14 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
14 – 28 Apr
21 Jun
4-6 wk
26 May
19 Jul
0 wk
Garden pea
Pisum sativum
28 Apr – 5 May
23 Jun
3-4 wk
26 May
14 Jul
0 wk
30 May
4 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
27 Apr – 11 May
29 May
4-6 wk
8 Jun
26 Jun
2 wk after
Lemon balm
Melissa officinalis
17 – 31 Mar
19 May
8-10 wk
26 May
14 Jul
0 wk
30 Jun
4 Jul
5 wk after
Dill
Anethum graveolens
30 May
20 Jul
1 wk after
Wild chives
Allium schoenoprasum
31 Mar – 14 Apr
2 Jun
6-8 wk
26 May
14 Jul
0 wk
30 May
4 Jul
1 wk after
Spearmint
Mentha spicata
3 – 31 Mar
19 May
8-12 wk
26 May
14 Jul
0 wk
30 Jun
4 Jul
5 wk after
Coriander
Coriandrum sativum
26 May
9 Aug
0 wk
16 Jun
30 Jul
3 wk after
Garden sage
Salvia officinalis
19 Mar – 2 Apr
4 May
8-10 wk
28 May
29 Jun
0 wk
Common thyme
Thymus vulgaris
17 – 31 Mar
9 May
8-10 wk
26 May
4 Jul
0 wk
Oregano
Origanum vulgare
31 Mar – 14 Apr
23 May
6-8 wk
26 May
4 Jul
0 wk
30 Jun
5 wk after
Parsley
Petroselinum crispum
31 Mar – 14 Apr
23 May
6-8 wk
26 May
4 Jul
0 wk
30 May
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
19 Feb – 19 Mar
31 Mar
10-14 wk
28 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
Fleece
11 – 18 May
5 Jun
3-4 wk
8 Jun
26 Jun
2 wk after
Cornflower
Centaurea cyanus
26 May
14 Jul
0 wk
30 May
4 Jul
1 wk after
Statice
Limonium sinuatum
30 Mar – 13 Apr
23 Apr
8-10 wk
8 Jun
18 Jun
2 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
13 – 27 Apr
7 May
6-8 wk
8 Jun
18 Jun
2 wk after
8 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
11 – 25 Apr
13 May
6-8 wk
6 Jun
24 Jun
2 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
4 Apr – 2 May
16 Jun
8-12 wk
27 Jun
11 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
13 – 27 Apr
17 May
6-8 wk
8 Jun
28 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
27 Apr – 11 May
29 Apr
4-6 wk
8 Jun
2 wk after
Chinese lantern
Physalis alkekengi
19 Mar – 2 Apr
15 Apr
8-10 wk
28 May
10 Jun
0 wk
Love in a mist
Nigella damascena
26 May
29 Jun
0 wk
30 May
19 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
13 – 27 Apr
27 Apr
6-8 wk
8 Jun
8 Jun
2 wk after
8 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
5 Mar – 2 Apr
15 Apr
8-12 wk
28 May
10 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
9 Mar – 6 Apr
20 Mar
8-12 wk
1 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
16 Mar – 13 Apr
21 Apr
8-12 wk
8 Jun
16 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
13 – 27 Apr
5 May
6-8 wk
8 Jun
16 Jun
2 wk after
Corn poppy
Papaver rhoeas
26 May
14 Jul
0 wk
30 May
4 Jul
1 wk after
Snapdragon
Antirrhinum majus
3 – 31 Mar
9 May
8-12 wk
26 May
4 Jul
0 wk
11 Jun
24 Jun
2 wk after
Flossflower
Ageratum houstonianum
18 Apr – 2 May
3 May
8-10 wk
27 Jun
28 Jun
5 wk after
Sweet pea
Lathyrus odoratus
31 Mar – 21 Apr
30 May
5-8 wk
26 May
4 Jul
0 wk
Stock
Matthiola incana
31 Mar – 14 Apr
2 Jun
6-8 wk
26 May
14 Jul
0 wk
16 Jun
4 Jul
3 wk after
Wormwood
Artemisia absinthium
31 Mar – 14 Apr
3 May
6-8 wk
26 May
14 Jun
0 wk
16 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
27 Apr – 11 May
14 May
4-6 wk
8 Jun
11 Jun
2 wk after
Garden pansy
Viola × wittrockiana
17 – 31 Mar
19 May
8-10 wk
26 May
14 Jul
0 wk
11 Jun
4 Jul
2 wk after
Petunia
Petunia
16 Mar – 13 Apr
23 Apr
8-12 wk
8 Jun
18 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
2 – 16 Apr
29 Apr
6-8 wk
28 May
10 Jun
0 wk
14 Jul
7 wk after
Common zinnia
Zinnia elegans
27 Apr – 11 May
29 May
4-6 wk
8 Jun
26 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
4 – 18 May
5 Jun
3-5 wk
8 Jun
26 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
27 Apr – 11 May
27 May
4-6 wk
8 Jun
24 Jun
2 wk after
14 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
4 Apr – 2 May
21 May
8-12 wk
27 Jun
16 Jul
5 wk after
Bee balm
Monarda didyma
3 – 31 Mar
19 Apr
8-12 wk
26 May
14 Jun
0 wk
30 Jun
5 wk after
Yarrow
Achillea millefolium
31 Mar – 14 Apr
3 Apr
6-8 wk
26 May
0 wk
16 Jun
3 wk after
Safflower
Carthamus tinctorius
26 May
14 Jun
0 wk
30 May
4 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
31 Mar – 14 Apr
23 May
6-8 wk
26 May
4 Jul
0 wk
8 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
14 – 28 Apr
6 Jun
4-6 wk
26 May
4 Jul
0 wk
16 Jun
24 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
9 – 23 Mar
31 Mar
10-12 wk
1 Jun
9 Jun
1 wk after
Sunflower
Helianthus annuus
11 – 18 May
8 Jun
3-4 wk
8 Jun
29 Jun
2 wk after
30 Jun
5 wk after
China aster
Callistephus chinensis
13 – 27 Apr
28 May
6-8 wk
8 Jun
9 Jul
2 wk after
14 Jul
7 wk after
Annual phlox
Phlox drummondii
6 – 20 Apr
17 May
6-8 wk
1 Jun
28 Jun
1 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
19 Apr
8-12 wk
26 May
14 Jun
0 wk
30 Jun
5 wk after
African marigold
Tagetes erecta
13 – 27 Apr
17 May
6-8 wk
8 Jun
28 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
2 – 16 Apr
18 May
6-8 wk
28 May
29 Jun
0 wk
14 Jul
7 wk after
Wood sage
Salvia nemorosa
17 – 31 Mar
9 Apr
8-10 wk
26 May
4 Jun
0 wk
30 Jun
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
30 Mar – 27 Apr
15 May
6-10 wk
8 Jun
26 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
26 May
14 Jul
0 wk
30 May
4 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
30 Mar – 13 Apr
23 Apr
8-10 wk
8 Jun
18 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
31 Mar – 14 Apr
3 May
6-8 wk
26 May
14 Jun
0 wk
16 Jun
3 wk after