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Method
Rel. frost
Last spring frost (0°C) 24 May Normal year · 20 years of data
Frost-free season 95 days 24 May – 27 Aug
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)
5 – 19 Apr
11 Jun
5-7 wk
24 May
16 Jul
0 wk
25 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
23 Jun
4-6 wk
24 May
21 Jul
0 wk
25 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
7 Mar – 4 Apr
25 Mar
8-12 wk
30 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Apr
6 Jun
5-7 wk
24 May
11 Jul
0 wk
24 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
2 – 9 May
7 Jun
3-4 wk
30 May
28 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
2 – 9 May
20 May
4-5 wk
6 Jun
17 Jun
2 wk after
18 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
4 – 11 Jun
3-4 wk
2 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
1 – 29 Mar
24 Mar
8-12 wk
24 May
0 wk
30 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
25 May
29 May
0 wk
25 May
0 wk
Maize
Zea mays
Fleece
2 – 9 May
9 May
3-4 wk
30 May
30 May
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
16 Jun
3-4 wk
26 May
7 Jul
0 wk
6 Jun
27 Jun
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 May
1 Jul
0 wk
24 May
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Apr
6 Jun
5-7 wk
24 May
11 Jul
0 wk
24 May
1 Jul
0 wk
Potato
Solanum tuberosum
22 Apr – 6 May
13 May
4-6 wk
3 Jun
10 Jun
1 wk after
3 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Apr
16 Jun
5-7 wk
24 May
21 Jul
0 wk
25 May
11 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
9 – 16 May
12 Jun
3-4 wk
6 Jun
3 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
28 Apr – 5 May
20 May
3-4 wk
26 May
10 Jun
0 wk
6 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
18 Jun
4-6 wk
24 May
16 Jul
0 wk
Lettuce
Lactuca sativa
26 Apr – 3 May
5 Jul
3-4 wk
24 May
26 Jul
0 wk
25 May
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Apr
18 Jun
4-6 wk
24 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
26 Apr – 10 May
20 May
2-4 wk
24 May
3 Jun
0 wk
24 May
24 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
25 May
29 May
0 wk
25 May
0 wk
Spinach
Spinacia oleracea
26 Apr – 3 May
20 Jul
3-4 wk
24 May
10 Aug
0 wk
21 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
18 Jun – 2 Jul
4-6 wk
30 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
4 – 18 Apr
18 Apr
6-8 wk
30 May
30 May
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
2 – 16 May
14 Jun
2-4 wk
30 May
28 Jun
1 wk after
18 Jun
18 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
18 Jun
4-6 wk
24 May
16 Jul
0 wk
Garden pea
Pisum sativum
26 Apr – 3 May
20 Jun
3-4 wk
24 May
11 Jul
0 wk
25 May
1 Jul
0 wk

Herbs

Plant Sow indoors Transplant Direct sow
Earliest Latest Growing time Earliest Latest Rel. frost Earliest Latest Rel. frost
Basil
Ocimum basilicum
Fleece
25 Apr – 9 May
21 May
4-6 wk
6 Jun
18 Jun
2 wk after
Lemon balm
Melissa officinalis
15 – 29 Mar
16 May
8-10 wk
24 May
11 Jul
0 wk
18 Jun
1 Jul
4 wk after
Dill
Anethum graveolens
25 May
7 Jul
0 wk
Wild chives
Allium schoenoprasum
29 Mar – 12 Apr
30 May
6-8 wk
24 May
11 Jul
0 wk
25 May
1 Jul
0 wk
Spearmint
Mentha spicata
1 – 29 Mar
16 May
8-12 wk
24 May
11 Jul
0 wk
18 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
24 May
27 Jul
0 wk
6 Jun
17 Jul
2 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
1 May
8-10 wk
26 May
26 Jun
0 wk
Common thyme
Thymus vulgaris
15 – 29 Mar
6 May
8-10 wk
24 May
1 Jul
0 wk
Oregano
Origanum vulgare
29 Mar – 12 Apr
20 May
6-8 wk
24 May
1 Jul
0 wk
18 Jun
21 Jun
4 wk after
Parsley
Petroselinum crispum
29 Mar – 12 Apr
20 May
6-8 wk
24 May
1 Jul
0 wk
25 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
17 Feb – 17 Mar
12 Mar
10-14 wk
26 May
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
9 – 16 May
28 May
3-4 wk
6 Jun
18 Jun
2 wk after
Cornflower
Centaurea cyanus
24 May
11 Jul
0 wk
25 May
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
21 Mar – 4 Apr
26 Apr
8-10 wk
30 May
21 Jun
1 wk after
Sweet William
Dianthus barbatus
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
3 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
4 – 18 Apr
10 May
6-8 wk
30 May
21 Jun
1 wk after
13 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
6 May
6-8 wk
4 Jun
17 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
23 Apr – 21 May
20 May
4-8 wk
18 Jun
4 wk after
18 Jun
4 wk after
Foxglove
Digitalis purpurea
15 – 29 Mar
8-10 wk
24 May
0 wk
6 Jun
2 wk after
Busy lizzie
Impatiens walleriana
2 – 30 Apr
8 Jun
8-12 wk
25 Jun
3 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
11 – 25 Apr
7 May
6-8 wk
6 Jun
18 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
25 Apr – 9 May
4-6 wk
6 Jun
2 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Mar
2 Apr
8-10 wk
26 May
28 May
0 wk
Love in a mist
Nigella damascena
24 May
26 Jun
0 wk
25 May
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
4 – 18 Apr
30 Apr
6-8 wk
30 May
11 Jun
1 wk after
13 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Mar
2 Apr
8-12 wk
26 May
28 May
0 wk
Cardoon
Cynara cardunculus
Greenhouse
1 – 29 Mar
17 Mar
8-12 wk
24 May
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
7 Mar – 4 Apr
22 Apr
8-12 wk
30 May
17 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
4 – 18 Apr
6 May
6-8 wk
30 May
17 Jun
1 wk after
Corn poppy
Papaver rhoeas
24 May
11 Jul
0 wk
25 May
1 Jul
0 wk
Snapdragon
Antirrhinum majus
1 – 29 Mar
6 May
8-12 wk
24 May
1 Jul
0 wk
3 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
28 Mar – 11 Apr
6 May
8-10 wk
6 Jun
1 Jul
2 wk after
Sweet pea
Lathyrus odoratus
29 Mar – 19 Apr
27 May
5-8 wk
24 May
1 Jul
0 wk
Stock
Matthiola incana
29 Mar – 12 Apr
30 May
6-8 wk
24 May
11 Jul
0 wk
6 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
29 Mar – 12 Apr
30 Apr
6-8 wk
24 May
11 Jun
0 wk
6 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
18 Apr – 2 May
15 May
4-6 wk
30 May
12 Jun
1 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Mar
16 May
8-10 wk
24 May
11 Jul
0 wk
3 Jun
1 Jul
1 wk after
Petunia
Petunia
Fleece
7 Mar – 4 Apr
26 Apr
8-12 wk
30 May
21 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Mar – 14 Apr
16 Apr
6-8 wk
26 May
28 May
0 wk
6 Jul
6 wk after
Common zinnia
Zinnia elegans
25 Apr – 9 May
21 May
4-6 wk
6 Jun
18 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
2 – 16 May
28 May
3-5 wk
6 Jun
18 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
25 Apr – 9 May
20 May
4-6 wk
6 Jun
17 Jun
2 wk after
6 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
2 – 30 Apr
13 May
8-12 wk
25 Jun
8 Jul
5 wk after
Bee balm
Monarda didyma
1 – 29 Mar
16 Apr
8-12 wk
24 May
11 Jun
0 wk
18 Jun
4 wk after
Yarrow
Achillea millefolium
29 Mar – 12 Apr
31 Mar
6-8 wk
24 May
0 wk
6 Jun
2 wk after
Safflower
Carthamus tinctorius
24 May
11 Jun
0 wk
25 May
1 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
29 Mar – 12 Apr
20 May
6-8 wk
24 May
1 Jul
0 wk
8 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
3 Jun
4-6 wk
24 May
1 Jul
0 wk
6 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
7 – 21 Mar
26 Mar
10-12 wk
30 May
4 Jun
1 wk after
Sunflower
Helianthus annuus
9 – 16 May
20 May
3-4 wk
6 Jun
10 Jun
2 wk after
18 Jun
4 wk after
China aster
Callistephus chinensis
11 – 25 Apr
9 May
6-8 wk
6 Jun
20 Jun
2 wk after
6 Jul
6 wk after
Annual phlox
Phlox drummondii
4 – 18 Apr
7 May
6-8 wk
30 May
18 Jun
1 wk after
6 Jul
6 wk after
Hollyhock
Alcea rosea
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
6 Jun
2 wk after
Alpine delphinium
Delphinium elatum
1 – 29 Mar
16 Apr
8-12 wk
24 May
11 Jun
0 wk
18 Jun
4 wk after
African marigold
Tagetes erecta
11 – 25 Apr
7 May
6-8 wk
6 Jun
18 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
29 Apr
6-8 wk
26 May
10 Jun
0 wk
6 Jul
6 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
6 Apr
8-10 wk
24 May
1 Jun
0 wk
18 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
28 Mar – 25 Apr
7 May
6-10 wk
6 Jun
18 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
24 May
10 Jul
0 wk
25 May
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
21 Mar – 4 Apr
22 Apr
8-10 wk
30 May
17 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
29 Mar – 12 Apr
30 Apr
6-8 wk
24 May
11 Jun
0 wk
6 Jun
2 wk after