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Method
Rel. frost
Last spring frost (0°C) 30 May Normal year · 20 years of data
Frost-free season 94 days 30 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)
11 – 25 Apr
13 Jun
5-7 wk
30 May
18 Jul
0 wk
31 May
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
18 Apr – 2 May
25 Jun
4-6 wk
30 May
23 Jul
0 wk
31 May
13 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
18 Mar – 15 Apr
26 Mar
8-12 wk
10 Jun
2 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
11 – 25 Apr
8 Jun
5-7 wk
30 May
13 Jul
0 wk
30 May
3 Jul
0 wk
Garden cucumber
Cucumis sativus
Fleece
22 – 29 May
3-4 wk
19 Jun
3 wk after
Florence Fennel
Foeniculum vulgare
Fleece
15 – 22 May
1 Jun
4-5 wk
19 Jun
29 Jun
3 wk after
24 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
12 – 19 Jun
3-4 wk
10 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
7 Mar – 4 Apr
26 Mar
8-12 wk
30 May
0 wk
5 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
31 May
3 Jun
0 wk
31 May
0 wk
Maize
Zea mays
Fleece
13 – 20 May
3-4 wk
10 Jun
2 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
8 – 15 May
28 Jun
3-4 wk
5 Jun
19 Jul
1 wk after
12 Jun
9 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
30 May
3 Jul
0 wk
30 May
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
11 – 25 Apr
8 Jun
5-7 wk
30 May
13 Jul
0 wk
30 May
3 Jul
0 wk
Potato
Solanum tuberosum
28 Apr – 12 May
17 May
4-6 wk
9 Jun
14 Jun
1 wk after
9 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
11 – 25 Apr
18 Jun
5-7 wk
30 May
23 Jul
0 wk
31 May
13 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
22 – 29 May
13 Jun
3-4 wk
19 Jun
4 Jul
3 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
8 – 15 May
20 May
3-4 wk
5 Jun
10 Jun
1 wk after
12 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
18 Apr – 2 May
20 Jun
4-6 wk
30 May
18 Jul
0 wk
Lettuce
Lactuca sativa
2 – 9 May
7 Jul
3-4 wk
30 May
28 Jul
0 wk
31 May
18 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
18 Apr – 2 May
20 Jun
4-6 wk
30 May
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
2 – 16 May
26 May
2-4 wk
30 May
9 Jun
0 wk
30 May
30 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
31 May
3 Jun
0 wk
31 May
0 wk
Spinach
Spinacia oleracea
2 – 9 May
22 Jul
3-4 wk
30 May
12 Aug
0 wk
27 May
2 Aug
0 wk
Sweet potato
Ipomoea batatas
24 Jun – 8 Jul
4-6 wk
5 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
15 – 29 Apr
19 Apr
6-8 wk
10 Jun
2 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
22 May – 5 Jun
27 May
2-4 wk
19 Jun
3 wk after
12 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
18 Apr – 2 May
20 Jun
4-6 wk
30 May
18 Jul
0 wk
Garden pea
Pisum sativum
2 – 9 May
22 Jun
3-4 wk
30 May
13 Jul
0 wk
31 May
3 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
8 – 22 May
22 May
4-6 wk
19 Jun
19 Jun
3 wk after
Lemon balm
Melissa officinalis
21 Mar – 4 Apr
18 May
8-10 wk
30 May
13 Jul
0 wk
24 Jun
3 Jul
4 wk after
Dill
Anethum graveolens
31 May
19 Jul
0 wk
Wild chives
Allium schoenoprasum
4 – 18 Apr
1 Jun
6-8 wk
30 May
13 Jul
0 wk
31 May
3 Jul
0 wk
Spearmint
Mentha spicata
7 Mar – 4 Apr
18 May
8-12 wk
30 May
13 Jul
0 wk
24 Jun
3 Jul
4 wk after
Coriander
Coriandrum sativum
30 May
8 Aug
0 wk
12 Jun
29 Jul
2 wk after
Garden sage
Salvia officinalis
27 Mar – 10 Apr
3 May
8-10 wk
5 Jun
28 Jun
1 wk after
Common thyme
Thymus vulgaris
21 Mar – 4 Apr
8 May
8-10 wk
30 May
3 Jul
0 wk
Oregano
Origanum vulgare
4 – 18 Apr
22 May
6-8 wk
30 May
3 Jul
0 wk
24 Jun
4 wk after
Parsley
Petroselinum crispum
4 – 18 Apr
22 May
6-8 wk
30 May
3 Jul
0 wk
31 May
23 Jun
0 wk
Rosemary
Salvia rosmarinus
27 Feb – 27 Mar
24 Mar
10-14 wk
5 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
22 – 29 May
29 May
3-4 wk
19 Jun
19 Jun
3 wk after
Cornflower
Centaurea cyanus
30 May
13 Jul
0 wk
31 May
3 Jul
0 wk
Statice
Limonium sinuatum
10 – 24 Apr
21 Apr
8-10 wk
19 Jun
3 wk after
Sweet William
Dianthus barbatus
4 – 18 Apr
6-8 wk
30 May
0 wk
9 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
24 Apr – 8 May
5 May
6-8 wk
19 Jun
3 wk after
5 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
19 Apr – 3 May
7 May
6-8 wk
14 Jun
18 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
29 Apr – 27 May
21 May
4-8 wk
24 Jun
4 wk after
24 Jun
4 wk after
Foxglove
Digitalis purpurea
21 Mar – 4 Apr
8-10 wk
30 May
0 wk
12 Jun
2 wk after
Busy lizzie
Impatiens walleriana
10 Apr – 8 May
9 Jun
8-12 wk
3 Jul
4 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
24 Apr – 8 May
15 May
6-8 wk
19 Jun
26 Jun
3 wk after
Hyacinth bean
Dolichos lablab
Season too short
8 – 22 May
4-6 wk
19 Jun
3 wk after
Chinese lantern
Physalis alkekengi
27 Mar – 10 Apr
14 Apr
8-10 wk
5 Jun
9 Jun
1 wk after
Love in a mist
Nigella damascena
30 May
28 Jun
0 wk
31 May
18 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
15 – 29 Apr
4 May
6-8 wk
10 Jun
15 Jun
2 wk after
19 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
13 Mar – 10 Apr
14 Apr
8-12 wk
5 Jun
9 Jun
1 wk after
Cardoon
Cynara cardunculus
Fleece
18 Mar – 15 Apr
19 Mar
8-12 wk
10 Jun
2 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
18 Mar – 15 Apr
23 Apr
8-12 wk
10 Jun
18 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
15 – 29 Apr
7 May
6-8 wk
10 Jun
18 Jun
2 wk after
Corn poppy
Papaver rhoeas
30 May
13 Jul
0 wk
31 May
3 Jul
0 wk
Snapdragon
Antirrhinum majus
7 Mar – 4 Apr
8 May
8-12 wk
30 May
3 Jul
0 wk
9 Jun
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
10 – 24 Apr
10 May
8-10 wk
19 Jun
5 Jul
3 wk after
Sweet pea
Lathyrus odoratus
4 – 25 Apr
29 May
5-8 wk
30 May
3 Jul
0 wk
Stock
Matthiola incana
4 – 18 Apr
1 Jun
6-8 wk
30 May
13 Jul
0 wk
12 Jun
3 Jul
2 wk after
Wormwood
Artemisia absinthium
4 – 18 Apr
2 May
6-8 wk
30 May
13 Jun
0 wk
12 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
29 Apr – 13 May
16 May
4-6 wk
10 Jun
13 Jun
2 wk after
Garden pansy
Viola × wittrockiana
21 Mar – 4 Apr
18 May
8-10 wk
30 May
13 Jul
0 wk
9 Jun
3 Jul
1 wk after
Petunia
Petunia
27 Mar – 24 Apr
21 Apr
8-12 wk
19 Jun
3 wk after
Sweet Scabious
Scabiosa atropurpurea
10 – 24 Apr
28 Apr
6-8 wk
5 Jun
9 Jun
1 wk after
12 Jul
6 wk after
Common zinnia
Zinnia elegans
8 – 22 May
22 May
4-6 wk
19 Jun
19 Jun
3 wk after
Common morning glory
Ipomoea purpurea
Fleece
15 – 29 May
29 May
3-5 wk
19 Jun
19 Jun
3 wk after
Garden cosmos
Cosmos bipinnatus
8 – 22 May
21 May
4-6 wk
19 Jun
3 wk after
12 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
10 Apr – 8 May
14 May
8-12 wk
3 Jul
9 Jul
5 wk after
Bee balm
Monarda didyma
7 Mar – 4 Apr
18 Apr
8-12 wk
30 May
13 Jun
0 wk
24 Jun
4 wk after
Yarrow
Achillea millefolium
4 – 18 Apr
6-8 wk
30 May
0 wk
12 Jun
2 wk after
Safflower
Carthamus tinctorius
30 May
13 Jun
0 wk
31 May
3 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
4 – 18 Apr
22 May
6-8 wk
30 May
3 Jul
0 wk
14 May
23 Jun
2 wk before
Bishop's flower
Ammi majus
18 Apr – 2 May
5 Jun
4-6 wk
30 May
3 Jul
0 wk
12 Jun
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
18 Mar – 1 Apr
30 Mar
10-12 wk
10 Jun
2 wk after
Sunflower
Helianthus annuus
22 – 29 May
1 Jun
3-4 wk
19 Jun
22 Jun
3 wk after
24 Jun
4 wk after
China aster
Callistephus chinensis
24 Apr – 8 May
21 May
6-8 wk
19 Jun
2 Jul
3 wk after
12 Jul
6 wk after
Annual phlox
Phlox drummondii
15 – 29 Apr
15 May
6-8 wk
10 Jun
26 Jun
2 wk after
12 Jul
6 wk after
Hollyhock
Alcea rosea
4 – 18 Apr
6-8 wk
30 May
0 wk
12 Jun
2 wk after
Alpine delphinium
Delphinium elatum
7 Mar – 4 Apr
18 Apr
8-12 wk
30 May
13 Jun
0 wk
24 Jun
4 wk after
African marigold
Tagetes erecta
24 Apr – 8 May
15 May
6-8 wk
19 Jun
26 Jun
3 wk after
Black-eyed Susan
Rudbeckia hirta
10 – 24 Apr
11 May
6-8 wk
5 Jun
22 Jun
1 wk after
12 Jul
6 wk after
Wood sage
Salvia nemorosa
21 Mar – 4 Apr
8 Apr
8-10 wk
30 May
3 Jun
0 wk
24 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
10 Apr – 8 May
8 May
6-10 wk
19 Jun
19 Jun
3 wk after
California goldenpoppy
Eschscholzia californica
30 May
13 Jul
0 wk
31 May
3 Jul
0 wk
Painted tongue
Salpiglossis sinuata
10 – 24 Apr
16 Apr
8-10 wk
19 Jun
3 wk after
Water forget-me-not
Myosotis scorpioides
4 – 18 Apr
2 May
6-8 wk
30 May
13 Jun
0 wk
12 Jun
2 wk after