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Method
Rel. frost
Last spring frost (0°C) 30 May Normal year · 20 years of data
Frost-free season 108 days 30 May – 15 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)
11 – 25 Apr
16 Jun
5-7 wk
30 May
21 Jul
0 wk
3 Jun
11 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
18 Apr – 2 May
28 Jun
4-6 wk
30 May
26 Jul
0 wk
3 Jun
16 Jul
1 wk after
Chili pepper
Capsicum annuum
Greenhouse
13 Mar – 10 Apr
31 Mar
8-12 wk
5 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
11 – 25 Apr
11 Jun
5-7 wk
30 May
16 Jul
0 wk
30 May
6 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
15 – 22 May
25 May
3-4 wk
12 Jun
15 Jun
2 wk after
Florence Fennel
Foeniculum vulgare
27 May – 3 Jun
4-5 wk
1 Jul
5 wk after
18 Jul
7 wk after
Butter bean
Phaseolus lunatus
Season too short
10 – 17 Jun
3-4 wk
8 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
7 Mar – 4 Apr
22 Mar
8-12 wk
30 May
0 wk
9 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
3 Jun
1 wk after
3 Jun
1 wk after
Maize
Zea mays
Fleece
8 – 15 May
15 May
3-4 wk
5 Jun
5 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
4 – 11 May
27 Jun
3-4 wk
1 Jun
18 Jul
0 wk
20 Jun
8 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
30 May
6 Jul
0 wk
30 May
26 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
11 – 25 Apr
11 Jun
5-7 wk
30 May
16 Jul
0 wk
30 May
6 Jul
0 wk
Potato
Solanum tuberosum
4 – 18 May
15 May
4-6 wk
15 Jun
2 wk after
15 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
11 – 25 Apr
21 Jun
5-7 wk
30 May
26 Jul
0 wk
3 Jun
16 Jul
1 wk after
Pumpkin
Cucurbita pepo
3 – 10 Jun
3-4 wk
1 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
4 – 11 May
18 May
3-4 wk
1 Jun
8 Jun
0 wk
20 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
18 Apr – 2 May
23 Jun
4-6 wk
30 May
21 Jul
0 wk
Lettuce
Lactuca sativa
2 – 9 May
10 Jul
3-4 wk
30 May
31 Jul
0 wk
3 Jun
21 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
18 Apr – 2 May
23 Jun
4-6 wk
30 May
21 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
2 – 16 May
22 May
2-4 wk
30 May
5 Jun
0 wk
30 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
3 Jun
1 wk after
3 Jun
1 wk after
Spinach
Spinacia oleracea
2 – 9 May
25 Jul
3-4 wk
30 May
15 Aug
0 wk
26 May
5 Aug
1 wk before
Sweet potato
Ipomoea batatas
1 – 15 Jul
4-6 wk
12 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Fleece
10 – 24 Apr
24 Apr
6-8 wk
5 Jun
5 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
15 – 29 May
1 Jun
2-4 wk
12 Jun
15 Jun
2 wk after
18 Jul
7 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
18 Apr – 2 May
23 Jun
4-6 wk
30 May
21 Jul
0 wk
Garden pea
Pisum sativum
2 – 9 May
25 Jun
3-4 wk
30 May
16 Jul
0 wk
3 Jun
6 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
1 – 15 May
22 May
4-6 wk
12 Jun
19 Jun
2 wk after
Lemon balm
Melissa officinalis
21 Mar – 4 Apr
21 May
8-10 wk
30 May
16 Jul
0 wk
4 Jul
6 Jul
5 wk after
Dill
Anethum graveolens
3 Jun
18 Jul
1 wk after
Wild chives
Allium schoenoprasum
4 – 18 Apr
4 Jun
6-8 wk
30 May
16 Jul
0 wk
3 Jun
6 Jul
1 wk after
Spearmint
Mentha spicata
7 Mar – 4 Apr
21 May
8-12 wk
30 May
16 Jul
0 wk
4 Jul
6 Jul
5 wk after
Coriander
Coriandrum sativum
30 May
7 Aug
0 wk
20 Jun
28 Jul
3 wk after
Garden sage
Salvia officinalis
23 Mar – 6 Apr
6 May
8-10 wk
1 Jun
1 Jul
0 wk
Common thyme
Thymus vulgaris
21 Mar – 4 Apr
11 May
8-10 wk
30 May
6 Jul
0 wk
Oregano
Origanum vulgare
4 – 18 Apr
25 May
6-8 wk
30 May
6 Jul
0 wk
4 Jul
5 wk after
Parsley
Petroselinum crispum
4 – 18 Apr
25 May
6-8 wk
30 May
6 Jul
0 wk
3 Jun
26 Jun
1 wk after
Rosemary
Salvia rosmarinus
23 Feb – 23 Mar
26 Mar
10-14 wk
1 Jun
4 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
15 – 22 May
29 May
3-4 wk
12 Jun
19 Jun
2 wk after
Cornflower
Centaurea cyanus
30 May
16 Jul
0 wk
3 Jun
6 Jul
1 wk after
Statice
Limonium sinuatum
3 – 17 Apr
20 Apr
8-10 wk
12 Jun
15 Jun
2 wk after
Sweet William
Dianthus barbatus
4 – 18 Apr
6-8 wk
30 May
0 wk
15 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
17 Apr – 1 May
4 May
6-8 wk
12 Jun
15 Jun
2 wk after
12 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
15 – 29 Apr
7 May
6-8 wk
10 Jun
18 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
9 May – 6 Jun
21 May
4-8 wk
4 Jul
5 wk after
4 Jul
5 wk after
Foxglove
Digitalis purpurea
21 Mar – 4 Apr
8-10 wk
30 May
0 wk
20 Jun
3 wk after
Busy lizzie
Impatiens walleriana
8 Apr – 6 May
9 Jun
8-12 wk
1 Jul
4 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
17 Apr – 1 May
14 May
6-8 wk
12 Jun
25 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
1 – 15 May
4-6 wk
12 Jun
2 wk after
Chinese lantern
Physalis alkekengi
23 Mar – 6 Apr
13 Apr
8-10 wk
1 Jun
8 Jun
0 wk
Love in a mist
Nigella damascena
30 May
1 Jul
0 wk
3 Jun
21 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
17 Apr – 1 May
24 Apr
6-8 wk
12 Jun
2 wk after
12 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
9 Mar – 6 Apr
13 Apr
8-12 wk
1 Jun
8 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
13 Mar – 10 Apr
22 Mar
8-12 wk
5 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
20 Mar – 17 Apr
14 Apr
8-12 wk
12 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
17 Apr – 1 May
28 Apr
6-8 wk
12 Jun
2 wk after
Corn poppy
Papaver rhoeas
30 May
16 Jul
0 wk
3 Jun
6 Jul
1 wk after
Snapdragon
Antirrhinum majus
7 Mar – 4 Apr
11 May
8-12 wk
30 May
6 Jul
0 wk
15 Jun
26 Jun
2 wk after
Flossflower
Ageratum houstonianum
22 Apr – 6 May
30 Apr
8-10 wk
1 Jul
5 wk after
Sweet pea
Lathyrus odoratus
4 – 25 Apr
1 Jun
5-8 wk
30 May
6 Jul
0 wk
Stock
Matthiola incana
4 – 18 Apr
4 Jun
6-8 wk
30 May
16 Jul
0 wk
20 Jun
6 Jul
3 wk after
Wormwood
Artemisia absinthium
4 – 18 Apr
5 May
6-8 wk
30 May
16 Jun
0 wk
20 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
1 – 15 May
7 May
4-6 wk
12 Jun
2 wk after
Garden pansy
Viola × wittrockiana
21 Mar – 4 Apr
21 May
8-10 wk
30 May
16 Jul
0 wk
15 Jun
6 Jul
2 wk after
Petunia
Petunia
20 Mar – 17 Apr
20 Apr
8-12 wk
12 Jun
15 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
6 – 20 Apr
27 Apr
6-8 wk
1 Jun
8 Jun
0 wk
18 Jul
7 wk after
Common zinnia
Zinnia elegans
1 – 15 May
22 May
4-6 wk
12 Jun
19 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
8 – 22 May
29 May
3-5 wk
12 Jun
19 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
1 – 15 May
21 May
4-6 wk
12 Jun
18 Jun
2 wk after
18 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
8 Apr – 6 May
14 May
8-12 wk
1 Jul
9 Jul
5 wk after
Bee balm
Monarda didyma
7 Mar – 4 Apr
21 Apr
8-12 wk
30 May
16 Jun
0 wk
4 Jul
5 wk after
Yarrow
Achillea millefolium
4 – 18 Apr
5 Apr
6-8 wk
30 May
0 wk
20 Jun
3 wk after
Safflower
Carthamus tinctorius
30 May
16 Jun
0 wk
3 Jun
6 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
4 – 18 Apr
25 May
6-8 wk
30 May
6 Jul
0 wk
12 May
26 Jun
3 wk before
Bishop's flower
Ammi majus
18 Apr – 2 May
8 Jun
4-6 wk
30 May
6 Jul
0 wk
20 Jun
26 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
13 – 27 Mar
30 Mar
10-12 wk
5 Jun
8 Jun
1 wk after
Sunflower
Helianthus annuus
15 – 22 May
3 Jun
3-4 wk
12 Jun
24 Jun
2 wk after
4 Jul
5 wk after
China aster
Callistephus chinensis
17 Apr – 1 May
23 May
6-8 wk
12 Jun
4 Jul
2 wk after
18 Jul
7 wk after
Annual phlox
Phlox drummondii
10 – 24 Apr
14 May
6-8 wk
5 Jun
25 Jun
1 wk after
18 Jul
7 wk after
Hollyhock
Alcea rosea
4 – 18 Apr
6-8 wk
30 May
0 wk
20 Jun
3 wk after
Alpine delphinium
Delphinium elatum
7 Mar – 4 Apr
21 Apr
8-12 wk
30 May
16 Jun
0 wk
4 Jul
5 wk after
African marigold
Tagetes erecta
17 Apr – 1 May
14 May
6-8 wk
12 Jun
25 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
6 – 20 Apr
13 May
6-8 wk
1 Jun
24 Jun
0 wk
18 Jul
7 wk after
Wood sage
Salvia nemorosa
21 Mar – 4 Apr
11 Apr
8-10 wk
30 May
6 Jun
0 wk
4 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
3 Apr – 1 May
8 May
6-10 wk
12 Jun
19 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
30 May
16 Jul
0 wk
3 Jun
6 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
3 – 17 Apr
23 Apr
8-10 wk
12 Jun
18 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
4 – 18 Apr
5 May
6-8 wk
30 May
16 Jun
0 wk
20 Jun
3 wk after