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Method
Rel. frost
Last spring frost (0°C) 27 May Normal year · 20 years of data
Frost-free season 110 days 27 May – 14 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)
8 – 22 Apr
15 Jun
5-7 wk
27 May
20 Jul
0 wk
31 May
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
15 – 29 Apr
27 Jun
4-6 wk
27 May
25 Jul
0 wk
31 May
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
19 Mar – 16 Apr
31 Mar
8-12 wk
11 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
8 – 22 Apr
10 Jun
5-7 wk
27 May
15 Jul
0 wk
27 May
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
26 May – 2 Jun
3-4 wk
23 Jun
4 wk after
Florence Fennel
Foeniculum vulgare
4 – 11 Jun
4-5 wk
9 Jul
6 wk after
15 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
16 – 23 Jun
3-4 wk
14 Jul
7 wk after
Onion
Allium cepa (Cepa-gruppen)
4 Mar – 1 Apr
21 Mar
8-12 wk
27 May
0 wk
17 Jun
3 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
31 May
5 Jun
1 wk after
31 May
1 wk after
Maize
Zea mays
Fleece
14 – 21 May
15 May
3-4 wk
11 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
7 – 14 May
4 Jul
3-4 wk
4 Jun
25 Jul
1 wk after
17 Jun
15 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
27 May
5 Jul
0 wk
27 May
25 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
8 – 22 Apr
10 Jun
5-7 wk
27 May
15 Jul
0 wk
27 May
5 Jul
0 wk
Potato
Solanum tuberosum
1 – 15 May
18 May
4-6 wk
12 Jun
15 Jun
2 wk after
12 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
8 – 22 Apr
20 Jun
5-7 wk
27 May
25 Jul
0 wk
31 May
15 Jul
1 wk after
Pumpkin
Cucurbita pepo
11 – 18 Jun
3-4 wk
9 Jul
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
7 – 14 May
23 May
3-4 wk
4 Jun
13 Jun
1 wk after
17 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
15 – 29 Apr
22 Jun
4-6 wk
27 May
20 Jul
0 wk
Lettuce
Lactuca sativa
29 Apr – 6 May
9 Jul
3-4 wk
27 May
30 Jul
0 wk
31 May
20 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
15 – 29 Apr
22 Jun
4-6 wk
27 May
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
29 Apr – 13 May
26 May
2-4 wk
27 May
9 Jun
0 wk
27 May
30 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
31 May
5 Jun
1 wk after
31 May
1 wk after
Spinach
Spinacia oleracea
29 Apr – 6 May
24 Jul
3-4 wk
27 May
14 Aug
0 wk
23 May
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
28 Jun – 12 Jul
4-6 wk
9 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
16 – 30 Apr
24 Apr
6-8 wk
11 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
26 May – 9 Jun
1 Jun
2-4 wk
23 Jun
4 wk after
15 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
15 – 29 Apr
22 Jun
4-6 wk
27 May
20 Jul
0 wk
Garden pea
Pisum sativum
29 Apr – 6 May
24 Jun
3-4 wk
27 May
15 Jul
0 wk
31 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
12 – 26 May
29 May
4-6 wk
23 Jun
26 Jun
4 wk after
Lemon balm
Melissa officinalis
18 Mar – 1 Apr
20 May
8-10 wk
27 May
15 Jul
0 wk
1 Jul
5 Jul
5 wk after
Dill
Anethum graveolens
31 May
25 Jul
1 wk after
Wild chives
Allium schoenoprasum
1 – 15 Apr
3 Jun
6-8 wk
27 May
15 Jul
0 wk
31 May
5 Jul
1 wk after
Spearmint
Mentha spicata
4 Mar – 1 Apr
20 May
8-12 wk
27 May
15 Jul
0 wk
1 Jul
5 Jul
5 wk after
Coriander
Coriandrum sativum
27 May
14 Aug
0 wk
17 Jun
4 Aug
3 wk after
Garden sage
Salvia officinalis
26 Mar – 9 Apr
5 May
8-10 wk
4 Jun
30 Jun
1 wk after
Common thyme
Thymus vulgaris
18 Mar – 1 Apr
10 May
8-10 wk
27 May
5 Jul
0 wk
Oregano
Origanum vulgare
1 – 15 Apr
24 May
6-8 wk
27 May
5 Jul
0 wk
1 Jul
5 wk after
Parsley
Petroselinum crispum
1 – 15 Apr
24 May
6-8 wk
27 May
5 Jul
0 wk
31 May
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
26 Feb – 26 Mar
30 Mar
10-14 wk
4 Jun
8 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
26 May – 2 Jun
5 Jun
3-4 wk
23 Jun
26 Jun
4 wk after
Cornflower
Centaurea cyanus
27 May
15 Jul
0 wk
31 May
5 Jul
1 wk after
Statice
Limonium sinuatum
14 – 28 Apr
21 Apr
8-10 wk
23 Jun
4 wk after
Sweet William
Dianthus barbatus
1 – 15 Apr
6-8 wk
27 May
0 wk
12 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
28 Apr – 12 May
5 May
6-8 wk
23 Jun
4 wk after
9 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
20 Apr – 4 May
13 May
6-8 wk
15 Jun
24 Jun
3 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
6 May – 3 Jun
27 May
4-8 wk
1 Jul
5 wk after
1 Jul
5 wk after
Foxglove
Digitalis purpurea
18 Mar – 1 Apr
8-10 wk
27 May
0 wk
17 Jun
3 wk after
Busy lizzie
Impatiens walleriana
16 Apr – 14 May
16 Jun
8-12 wk
9 Jul
11 Aug
6 wk after
Creeping zinnia
Sanvitalia procumbens
28 Apr – 12 May
15 May
6-8 wk
23 Jun
26 Jun
4 wk after
Hyacinth bean
Dolichos lablab
Season too short
12 – 26 May
4-6 wk
23 Jun
4 wk after
Chinese lantern
Physalis alkekengi
26 Mar – 9 Apr
20 Apr
8-10 wk
4 Jun
15 Jun
1 wk after
Love in a mist
Nigella damascena
27 May
30 Jun
0 wk
31 May
20 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
28 Apr – 12 May
6-8 wk
23 Jun
4 wk after
9 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
12 Mar – 9 Apr
20 Apr
8-12 wk
4 Jun
15 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
19 Mar – 16 Apr
21 Mar
8-12 wk
11 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
31 Mar – 28 Apr
21 Apr
8-12 wk
23 Jun
4 wk after
Globe amaranth
Gomphrena globosa
Fleece
28 Apr – 12 May
5 May
6-8 wk
23 Jun
4 wk after
Corn poppy
Papaver rhoeas
27 May
15 Jul
0 wk
31 May
5 Jul
1 wk after
Snapdragon
Antirrhinum majus
4 Mar – 1 Apr
10 May
8-12 wk
27 May
5 Jul
0 wk
12 Jun
25 Jun
2 wk after
Flossflower
Ageratum houstonianum
30 Apr – 14 May
1 May
8-10 wk
9 Jul
6 wk after
Sweet pea
Lathyrus odoratus
1 – 22 Apr
31 May
5-8 wk
27 May
5 Jul
0 wk
Stock
Matthiola incana
1 – 15 Apr
3 Jun
6-8 wk
27 May
15 Jul
0 wk
17 Jun
5 Jul
3 wk after
Wormwood
Artemisia absinthium
1 – 15 Apr
4 May
6-8 wk
27 May
15 Jun
0 wk
17 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
12 – 26 May
14 May
4-6 wk
23 Jun
4 wk after
Garden pansy
Viola × wittrockiana
18 Mar – 1 Apr
20 May
8-10 wk
27 May
15 Jul
0 wk
12 Jun
5 Jul
2 wk after
Petunia
Petunia
31 Mar – 28 Apr
21 Apr
8-12 wk
23 Jun
4 wk after
Sweet Scabious
Scabiosa atropurpurea
9 – 23 Apr
4 May
6-8 wk
4 Jun
15 Jun
1 wk after
15 Jul
7 wk after
Common zinnia
Zinnia elegans
12 – 26 May
29 May
4-6 wk
23 Jun
26 Jun
4 wk after
Common morning glory
Ipomoea purpurea
Fleece
19 May – 2 Jun
5 Jun
3-5 wk
23 Jun
26 Jun
4 wk after
Garden cosmos
Cosmos bipinnatus
12 – 26 May
27 May
4-6 wk
23 Jun
24 Jun
4 wk after
15 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
16 Apr – 14 May
21 May
8-12 wk
9 Jul
16 Jul
6 wk after
Bee balm
Monarda didyma
4 Mar – 1 Apr
20 Apr
8-12 wk
27 May
15 Jun
0 wk
1 Jul
5 wk after
Yarrow
Achillea millefolium
1 – 15 Apr
4 Apr
6-8 wk
27 May
0 wk
17 Jun
3 wk after
Safflower
Carthamus tinctorius
27 May
15 Jun
0 wk
31 May
5 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
1 – 15 Apr
24 May
6-8 wk
27 May
5 Jul
0 wk
9 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
15 – 29 Apr
7 Jun
4-6 wk
27 May
5 Jul
0 wk
17 Jun
25 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Fleece
31 Mar – 14 Apr
10-12 wk
23 Jun
4 wk after
Sunflower
Helianthus annuus
26 May – 2 Jun
7 Jun
3-4 wk
23 Jun
28 Jun
4 wk after
1 Jul
5 wk after
China aster
Callistephus chinensis
28 Apr – 12 May
27 May
6-8 wk
23 Jun
8 Jul
4 wk after
15 Jul
7 wk after
Annual phlox
Phlox drummondii
16 – 30 Apr
15 May
6-8 wk
11 Jun
26 Jun
2 wk after
15 Jul
7 wk after
Hollyhock
Alcea rosea
1 – 15 Apr
6-8 wk
27 May
0 wk
17 Jun
3 wk after
Alpine delphinium
Delphinium elatum
4 Mar – 1 Apr
20 Apr
8-12 wk
27 May
15 Jun
0 wk
1 Jul
5 wk after
African marigold
Tagetes erecta
28 Apr – 12 May
15 May
6-8 wk
23 Jun
26 Jun
4 wk after
Black-eyed Susan
Rudbeckia hirta
9 – 23 Apr
17 May
6-8 wk
4 Jun
28 Jun
1 wk after
15 Jul
7 wk after
Wood sage
Salvia nemorosa
18 Mar – 1 Apr
10 Apr
8-10 wk
27 May
5 Jun
0 wk
1 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
14 Apr – 12 May
15 May
6-10 wk
23 Jun
26 Jun
4 wk after
California goldenpoppy
Eschscholzia californica
27 May
15 Jul
0 wk
31 May
5 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
14 – 28 Apr
22 Apr
8-10 wk
23 Jun
4 wk after
Water forget-me-not
Myosotis scorpioides
1 – 15 Apr
4 May
6-8 wk
27 May
15 Jun
0 wk
17 Jun
3 wk after