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Method
Rel. frost
Last spring frost (0°C) 29 May Normal year · 20 years of data
Frost-free season 95 days 29 May – 1 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)
10 – 24 Apr
11 Jun
5-7 wk
29 May
16 Jul
0 wk
30 May
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
17 Apr – 1 May
23 Jun
4-6 wk
29 May
21 Jul
0 wk
30 May
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
12 Mar – 9 Apr
17 Mar
8-12 wk
4 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
10 – 24 Apr
6 Jun
5-7 wk
29 May
11 Jul
0 wk
29 May
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
7 – 14 May
5 Jun
3-4 wk
4 Jun
26 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
7 – 14 May
24 May
4-5 wk
11 Jun
21 Jun
2 wk after
23 Jun
4 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)
Greenhouse
6 Mar – 3 Apr
27 Mar
8-12 wk
29 May
0 wk
29 May
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
30 May
0 wk
30 May
0 wk
Maize
Zea mays
Greenhouse
1 – 8 May
26 May
3-4 wk
29 May
16 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 May
20 Jun
3-4 wk
31 May
11 Jul
0 wk
11 Jun
1 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 May
1 Jul
0 wk
29 May
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Apr
6 Jun
5-7 wk
29 May
11 Jul
0 wk
29 May
1 Jul
0 wk
Potato
Solanum tuberosum
27 Apr – 11 May
11 May
4-6 wk
8 Jun
8 Jun
1 wk after
8 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Apr
16 Jun
5-7 wk
29 May
21 Jul
0 wk
30 May
11 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
14 – 21 May
10 Jun
3-4 wk
11 Jun
1 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 May
10 May
3-4 wk
31 May
31 May
0 wk
11 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
17 Apr – 1 May
18 Jun
4-6 wk
29 May
16 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 May
5 Jul
3-4 wk
29 May
26 Jul
0 wk
30 May
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 Apr – 1 May
18 Jun
4-6 wk
29 May
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
1 – 15 May
13 May
2-4 wk
29 May
0 wk
29 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
30 May
0 wk
30 May
0 wk
Spinach
Spinacia oleracea
1 – 8 May
20 Jul
3-4 wk
29 May
10 Aug
0 wk
26 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
23 Jun – 7 Jul
4-6 wk
4 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
3 – 17 Apr
5 May
6-8 wk
29 May
16 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
7 – 21 May
12 Jun
2-4 wk
4 Jun
26 Jun
1 wk after
23 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
17 Apr – 1 May
18 Jun
4-6 wk
29 May
16 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 May
20 Jun
3-4 wk
29 May
11 Jul
0 wk
30 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
30 Apr – 14 May
19 May
4-6 wk
11 Jun
16 Jun
2 wk after
Lemon balm
Melissa officinalis
20 Mar – 3 Apr
16 May
8-10 wk
29 May
11 Jul
0 wk
23 Jun
1 Jul
4 wk after
Dill
Anethum graveolens
30 May
11 Jul
0 wk
Wild chives
Allium schoenoprasum
3 – 17 Apr
30 May
6-8 wk
29 May
11 Jul
0 wk
30 May
1 Jul
0 wk
Spearmint
Mentha spicata
6 Mar – 3 Apr
16 May
8-12 wk
29 May
11 Jul
0 wk
23 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
29 May
31 Jul
0 wk
11 Jun
21 Jul
2 wk after
Garden sage
Salvia officinalis
22 Mar – 5 Apr
1 May
8-10 wk
31 May
26 Jun
0 wk
Common thyme
Thymus vulgaris
20 Mar – 3 Apr
6 May
8-10 wk
29 May
1 Jul
0 wk
Oregano
Origanum vulgare
3 – 17 Apr
20 May
6-8 wk
29 May
1 Jul
0 wk
23 Jun
4 wk after
Parsley
Petroselinum crispum
3 – 17 Apr
20 May
6-8 wk
29 May
1 Jul
0 wk
30 May
21 Jun
0 wk
Rosemary
Salvia rosmarinus
22 Feb – 22 Mar
19 Mar
10-14 wk
31 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
14 – 21 May
26 May
3-4 wk
11 Jun
16 Jun
2 wk after
Cornflower
Centaurea cyanus
29 May
11 Jul
0 wk
30 May
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
26 Mar – 9 Apr
22 Apr
8-10 wk
4 Jun
17 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
6 May
6-8 wk
4 Jun
17 Jun
1 wk after
18 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
14 – 28 Apr
2 May
6-8 wk
9 Jun
13 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
16 Apr – 14 May
24 May
4-8 wk
11 Jun
21 Jun
2 wk after
11 Jun
11 Jun
2 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
7 Apr – 5 May
6 Jun
8-12 wk
30 Jun
1 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
16 – 30 Apr
7 May
6-8 wk
11 Jun
18 Jun
2 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
6 Apr
8-10 wk
31 May
1 Jun
0 wk
Love in a mist
Nigella damascena
29 May
26 Jun
0 wk
30 May
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
9 – 23 Apr
26 Apr
6-8 wk
4 Jun
7 Jun
1 wk after
18 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
8 Mar – 5 Apr
6 Apr
8-12 wk
31 May
1 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
6 Mar – 3 Apr
17 Mar
8-12 wk
29 May
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
12 Mar – 9 Apr
18 Apr
8-12 wk
4 Jun
13 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
9 – 23 Apr
2 May
6-8 wk
4 Jun
13 Jun
1 wk after
Corn poppy
Papaver rhoeas
29 May
11 Jul
0 wk
30 May
1 Jul
0 wk
Snapdragon
Antirrhinum majus
6 Mar – 3 Apr
6 May
8-12 wk
29 May
1 Jul
0 wk
8 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
2 – 16 Apr
2 May
8-10 wk
11 Jun
27 Jun
2 wk after
Sweet pea
Lathyrus odoratus
3 – 24 Apr
27 May
5-8 wk
29 May
1 Jul
0 wk
Stock
Matthiola incana
3 – 17 Apr
30 May
6-8 wk
29 May
11 Jul
0 wk
11 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
3 – 17 Apr
30 Apr
6-8 wk
29 May
11 Jun
0 wk
11 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
23 Apr – 7 May
11 May
4-6 wk
4 Jun
8 Jun
1 wk after
Garden pansy
Viola × wittrockiana
20 Mar – 3 Apr
16 May
8-10 wk
29 May
11 Jul
0 wk
8 Jun
1 Jul
1 wk after
Petunia
Petunia
Fleece
12 Mar – 9 Apr
22 Apr
8-12 wk
4 Jun
17 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Apr
20 Apr
6-8 wk
31 May
1 Jun
0 wk
11 Jul
6 wk after
Common zinnia
Zinnia elegans
30 Apr – 14 May
19 May
4-6 wk
11 Jun
16 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
7 – 21 May
26 May
3-5 wk
11 Jun
16 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
30 Apr – 14 May
16 May
4-6 wk
11 Jun
13 Jun
2 wk after
11 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
7 Apr – 5 May
11 May
8-12 wk
30 Jun
6 Jul
5 wk after
Bee balm
Monarda didyma
6 Mar – 3 Apr
16 Apr
8-12 wk
29 May
11 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
11 Jun
0 wk
30 May
1 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
3 – 17 Apr
20 May
6-8 wk
29 May
1 Jul
0 wk
13 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
3 Jun
4-6 wk
29 May
1 Jul
0 wk
11 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
12 – 26 Mar
23 Mar
10-12 wk
4 Jun
1 wk after
Sunflower
Helianthus annuus
14 – 21 May
27 May
3-4 wk
11 Jun
17 Jun
2 wk after
23 Jun
4 wk after
China aster
Callistephus chinensis
16 – 30 Apr
16 May
6-8 wk
11 Jun
27 Jun
2 wk after
11 Jul
6 wk after
Annual phlox
Phlox drummondii
9 – 23 Apr
7 May
6-8 wk
4 Jun
18 Jun
1 wk after
11 Jul
6 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
16 Apr
8-12 wk
29 May
11 Jun
0 wk
23 Jun
4 wk after
African marigold
Tagetes erecta
16 – 30 Apr
7 May
6-8 wk
11 Jun
18 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Apr
6 May
6-8 wk
31 May
17 Jun
0 wk
11 Jul
6 wk after
Wood sage
Salvia nemorosa
20 Mar – 3 Apr
6 Apr
8-10 wk
29 May
1 Jun
0 wk
23 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
2 – 30 Apr
5 May
6-10 wk
11 Jun
16 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
29 May
10 Jul
0 wk
30 May
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
26 Mar – 9 Apr
26 Apr
8-10 wk
4 Jun
21 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
3 – 17 Apr
30 Apr
6-8 wk
29 May
11 Jun
0 wk
11 Jun
2 wk after