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Method
Rel. frost
Last spring frost (0°C) 1 Jun Normal year · 20 years of data
Frost-free season 113 days 1 Jun – 22 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)
13 – 27 Apr
11 Jun
5-7 wk
1 Jun
16 Jul
0 wk
2 Jun
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
20 Apr – 4 May
23 Jun
4-6 wk
1 Jun
21 Jul
0 wk
2 Jun
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
15 Mar – 12 Apr
8-12 wk
7 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
13 – 27 Apr
6 Jun
5-7 wk
1 Jun
11 Jul
0 wk
1 Jun
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
10 – 17 May
27 May
3-4 wk
7 Jun
17 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
10 – 17 May
3 Jun
4-5 wk
14 Jun
1 Jul
2 wk after
26 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)
Season too short
9 Mar – 6 Apr
15 Mar
8-12 wk
1 Jun
0 wk
1 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Season too short
23 May
30 May
1 wk before
23 May
1 wk before
Maize
Zea mays
Greenhouse
4 – 11 May
17 May
3-4 wk
1 Jun
7 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
30 Jun
3-4 wk
3 Jun
21 Jul
0 wk
14 Jun
11 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
1 Jun
1 Jul
0 wk
1 Jun
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
13 – 27 Apr
6 Jun
5-7 wk
1 Jun
11 Jul
0 wk
1 Jun
1 Jul
0 wk
Potato
Solanum tuberosum
Greenhouse
17 Apr – 1 May
15 May
4-6 wk
29 May
12 Jun
0 wk
29 May
2 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
13 – 27 Apr
16 Jun
5-7 wk
1 Jun
21 Jul
0 wk
2 Jun
11 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
10 – 17 May
19 Jun
3-4 wk
7 Jun
10 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
4 – 11 May
15 May
3-4 wk
1 Jun
5 Jun
0 wk
7 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
20 Apr – 4 May
18 Jun
4-6 wk
1 Jun
16 Jul
0 wk
Lettuce
Lactuca sativa
4 – 11 May
5 Jul
3-4 wk
1 Jun
26 Jul
0 wk
2 Jun
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
20 Apr – 4 May
18 Jun
4-6 wk
1 Jun
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Greenhouse
18 Apr – 2 May
28 May
2-4 wk
16 May
11 Jun
2 wk before
16 May
1 Jun
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Season too short
23 May
30 May
1 wk before
23 May
1 wk before
Spinach
Spinacia oleracea
4 – 11 May
20 Jul
3-4 wk
1 Jun
10 Aug
0 wk
29 May
31 Jul
0 wk
Sweet potato
Ipomoea batatas
26 Jun – 10 Jul
4-6 wk
7 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
6 – 20 Apr
26 Apr
6-8 wk
1 Jun
7 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
10 – 24 May
3 Jun
2-4 wk
7 Jun
17 Jun
1 wk after
26 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
20 Apr – 4 May
18 Jun
4-6 wk
1 Jun
16 Jul
0 wk
Garden pea
Pisum sativum
4 – 11 May
20 Jun
3-4 wk
1 Jun
11 Jul
0 wk
2 Jun
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
Greenhouse
26 Apr – 10 May
28 May
4-6 wk
7 Jun
25 Jun
1 wk after
Lemon balm
Melissa officinalis
23 Mar – 6 Apr
16 May
8-10 wk
1 Jun
11 Jul
0 wk
26 Jun
1 Jul
4 wk after
Dill
Anethum graveolens
2 Jun
21 Jul
0 wk
Wild chives
Allium schoenoprasum
6 – 20 Apr
30 May
6-8 wk
1 Jun
11 Jul
0 wk
2 Jun
1 Jul
0 wk
Spearmint
Mentha spicata
9 Mar – 6 Apr
16 May
8-12 wk
1 Jun
11 Jul
0 wk
26 Jun
1 Jul
4 wk after
Coriander
Coriandrum sativum
1 Jun
10 Aug
0 wk
14 Jun
31 Jul
2 wk after
Garden sage
Salvia officinalis
25 Mar – 8 Apr
1 May
8-10 wk
3 Jun
26 Jun
0 wk
Common thyme
Thymus vulgaris
23 Mar – 6 Apr
6 May
8-10 wk
1 Jun
1 Jul
0 wk
Oregano
Origanum vulgare
6 – 20 Apr
20 May
6-8 wk
1 Jun
1 Jul
0 wk
26 Jun
4 wk after
Parsley
Petroselinum crispum
6 – 20 Apr
20 May
6-8 wk
1 Jun
1 Jul
0 wk
2 Jun
21 Jun
0 wk
Rosemary
Salvia rosmarinus
25 Feb – 25 Mar
2 Apr
10-14 wk
3 Jun
11 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
Greenhouse
10 – 17 May
4 Jun
3-4 wk
7 Jun
25 Jun
1 wk after
Cornflower
Centaurea cyanus
1 Jun
11 Jul
0 wk
2 Jun
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
29 Mar – 12 Apr
24 Apr
8-10 wk
7 Jun
19 Jun
1 wk after
Sweet William
Dianthus barbatus
6 – 20 Apr
6-8 wk
1 Jun
0 wk
11 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
12 – 26 Apr
8 May
6-8 wk
7 Jun
19 Jun
1 wk after
21 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
8 – 22 Apr
11 May
6-8 wk
3 Jun
22 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
12 Apr – 10 May
3 Jun
4-8 wk
7 Jun
1 Jul
1 wk after
7 Jun
21 Jun
1 wk after
Foxglove
Digitalis purpurea
23 Mar – 6 Apr
8-10 wk
1 Jun
0 wk
14 Jun
2 wk after
Busy lizzie
Impatiens walleriana
10 Apr – 8 May
28 May
8-12 wk
3 Jul
23 Jul
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
12 – 26 Apr
18 May
6-8 wk
7 Jun
29 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
3 – 17 May
4-6 wk
14 Jun
2 wk after
Chinese lantern
Physalis alkekengi
25 Mar – 8 Apr
16 Apr
8-10 wk
3 Jun
11 Jun
0 wk
Love in a mist
Nigella damascena
1 Jun
26 Jun
0 wk
2 Jun
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
12 – 26 Apr
28 Apr
6-8 wk
7 Jun
9 Jun
1 wk after
21 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
11 Mar – 8 Apr
16 Apr
8-12 wk
3 Jun
11 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
9 Mar – 6 Apr
17 Mar
8-12 wk
1 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
15 Mar – 12 Apr
20 Apr
8-12 wk
7 Jun
15 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
12 – 26 Apr
4 May
6-8 wk
7 Jun
15 Jun
1 wk after
Corn poppy
Papaver rhoeas
1 Jun
11 Jul
0 wk
2 Jun
1 Jul
0 wk
Snapdragon
Antirrhinum majus
9 Mar – 6 Apr
6 May
8-12 wk
1 Jun
1 Jul
0 wk
11 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
5 – 19 Apr
4 May
8-10 wk
14 Jun
29 Jun
2 wk after
Sweet pea
Lathyrus odoratus
6 – 27 Apr
27 May
5-8 wk
1 Jun
1 Jul
0 wk
Stock
Matthiola incana
6 – 20 Apr
30 May
6-8 wk
1 Jun
11 Jul
0 wk
14 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
6 – 20 Apr
30 Apr
6-8 wk
1 Jun
11 Jun
0 wk
14 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
26 Apr – 10 May
13 May
4-6 wk
7 Jun
10 Jun
1 wk after
Garden pansy
Viola × wittrockiana
23 Mar – 6 Apr
16 May
8-10 wk
1 Jun
11 Jul
0 wk
11 Jun
1 Jul
1 wk after
Petunia
Petunia
Fleece
15 Mar – 12 Apr
24 Apr
8-12 wk
7 Jun
19 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
8 – 22 Apr
30 Apr
6-8 wk
3 Jun
11 Jun
0 wk
14 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
26 Apr – 10 May
28 May
4-6 wk
7 Jun
25 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
3 – 17 May
4 Jun
3-5 wk
7 Jun
25 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
26 Apr – 10 May
25 May
4-6 wk
7 Jun
22 Jun
1 wk after
26 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
22 Mar – 19 Apr
20 May
8-12 wk
14 Jun
15 Jul
2 wk after
Bee balm
Monarda didyma
9 Mar – 6 Apr
16 Apr
8-12 wk
1 Jun
11 Jun
0 wk
26 Jun
4 wk after
Yarrow
Achillea millefolium
6 – 20 Apr
6-8 wk
1 Jun
0 wk
14 Jun
2 wk after
Safflower
Carthamus tinctorius
1 Jun
11 Jun
0 wk
2 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
6 – 20 Apr
20 May
6-8 wk
1 Jun
1 Jul
0 wk
16 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
20 Apr – 4 May
3 Jun
4-6 wk
1 Jun
1 Jul
0 wk
14 Jun
21 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
15 – 29 Mar
24 Mar
10-12 wk
7 Jun
1 wk after
Sunflower
Helianthus annuus
17 – 24 May
10 Jun
3-4 wk
14 Jun
1 Jul
2 wk after
26 Jun
4 wk after
China aster
Callistephus chinensis
19 Apr – 3 May
30 May
6-8 wk
14 Jun
11 Jul
2 wk after
14 Jul
6 wk after
Annual phlox
Phlox drummondii
12 – 26 Apr
3 May
6-8 wk
7 Jun
14 Jun
1 wk after
14 Jul
6 wk after
Hollyhock
Alcea rosea
6 – 20 Apr
6-8 wk
1 Jun
0 wk
14 Jun
2 wk after
Alpine delphinium
Delphinium elatum
9 Mar – 6 Apr
16 Apr
8-12 wk
1 Jun
11 Jun
0 wk
26 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
12 – 26 Apr
18 May
6-8 wk
7 Jun
29 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
8 – 22 Apr
20 May
6-8 wk
3 Jun
1 Jul
0 wk
14 Jul
6 wk after
Wood sage
Salvia nemorosa
23 Mar – 6 Apr
6 Apr
8-10 wk
1 Jun
1 Jun
0 wk
26 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
29 Mar – 26 Apr
14 May
6-10 wk
7 Jun
25 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
1 Jun
11 Jul
0 wk
2 Jun
1 Jul
0 wk
Painted tongue
Salpiglossis sinuata
5 – 19 Apr
2 May
8-10 wk
14 Jun
27 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
6 – 20 Apr
30 Apr
6-8 wk
1 Jun
11 Jun
0 wk
14 Jun
2 wk after