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Method
Rel. frost
Last spring frost (0°C) 29 May Normal year · 20 years of data
Frost-free season 115 days 29 May – 21 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
14 Jun
5-7 wk
29 May
19 Jul
0 wk
2 Jun
9 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
17 Apr – 1 May
26 Jun
4-6 wk
29 May
24 Jul
0 wk
2 Jun
14 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
12 Mar – 9 Apr
8-12 wk
4 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
10 – 24 Apr
9 Jun
5-7 wk
29 May
14 Jul
0 wk
29 May
4 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
7 – 14 May
6 Jun
3-4 wk
4 Jun
27 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
7 – 14 May
5 Jun
4-5 wk
11 Jun
3 Jul
2 wk after
3 Jul
5 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)
Fleece
6 Mar – 3 Apr
25 Mar
8-12 wk
29 May
0 wk
8 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
2 Jun
2 Jun
1 wk after
2 Jun
1 wk after
Maize
Zea mays
Greenhouse
1 – 8 May
27 May
3-4 wk
29 May
17 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 May
2 Jul
3-4 wk
31 May
23 Jul
0 wk
19 Jun
13 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
29 May
4 Jul
0 wk
29 May
24 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Apr
9 Jun
5-7 wk
29 May
14 Jul
0 wk
29 May
4 Jul
0 wk
Potato
Solanum tuberosum
3 – 17 May
14 May
4-6 wk
14 Jun
2 wk after
14 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Apr
19 Jun
5-7 wk
29 May
24 Jul
0 wk
2 Jun
14 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
14 – 21 May
11 Jun
3-4 wk
11 Jun
2 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 May
14 May
3-4 wk
31 May
4 Jun
0 wk
19 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
17 Apr – 1 May
21 Jun
4-6 wk
29 May
19 Jul
0 wk
Lettuce
Lactuca sativa
1 – 8 May
8 Jul
3-4 wk
29 May
29 Jul
0 wk
2 Jun
19 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
17 Apr – 1 May
21 Jun
4-6 wk
29 May
19 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
1 – 15 May
23 May
2-4 wk
29 May
6 Jun
0 wk
29 May
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
2 Jun
2 Jun
1 wk after
2 Jun
1 wk after
Spinach
Spinacia oleracea
1 – 8 May
23 Jul
3-4 wk
29 May
13 Aug
0 wk
25 May
3 Aug
1 wk before
Sweet potato
Ipomoea batatas
30 Jun – 14 Jul
4-6 wk
11 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
3 – 17 Apr
6 May
6-8 wk
29 May
17 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
7 – 21 May
13 Jun
2-4 wk
4 Jun
27 Jun
1 wk after
3 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
17 Apr – 1 May
21 Jun
4-6 wk
29 May
19 Jul
0 wk
Garden pea
Pisum sativum
1 – 8 May
23 Jun
3-4 wk
29 May
14 Jul
0 wk
2 Jun
4 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
30 Apr – 14 May
20 May
4-6 wk
11 Jun
17 Jun
2 wk after
Lemon balm
Melissa officinalis
20 Mar – 3 Apr
19 May
8-10 wk
29 May
14 Jul
0 wk
3 Jul
4 Jul
5 wk after
Dill
Anethum graveolens
2 Jun
23 Jul
1 wk after
Wild chives
Allium schoenoprasum
3 – 17 Apr
2 Jun
6-8 wk
29 May
14 Jul
0 wk
2 Jun
4 Jul
1 wk after
Spearmint
Mentha spicata
6 Mar – 3 Apr
19 May
8-12 wk
29 May
14 Jul
0 wk
3 Jul
4 Jul
5 wk after
Coriander
Coriandrum sativum
29 May
12 Aug
0 wk
19 Jun
2 Aug
3 wk after
Garden sage
Salvia officinalis
22 Mar – 5 Apr
4 May
8-10 wk
31 May
29 Jun
0 wk
Common thyme
Thymus vulgaris
20 Mar – 3 Apr
9 May
8-10 wk
29 May
4 Jul
0 wk
Oregano
Origanum vulgare
3 – 17 Apr
23 May
6-8 wk
29 May
4 Jul
0 wk
3 Jul
5 wk after
Parsley
Petroselinum crispum
3 – 17 Apr
23 May
6-8 wk
29 May
4 Jul
0 wk
2 Jun
24 Jun
1 wk after
Rosemary
Salvia rosmarinus
22 Feb – 22 Mar
27 Mar
10-14 wk
31 May
5 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
14 – 21 May
27 May
3-4 wk
11 Jun
17 Jun
2 wk after
Cornflower
Centaurea cyanus
29 May
14 Jul
0 wk
2 Jun
4 Jul
1 wk after
Statice
Limonium sinuatum
2 – 16 Apr
19 Apr
8-10 wk
11 Jun
14 Jun
2 wk after
Sweet William
Dianthus barbatus
3 – 17 Apr
6-8 wk
29 May
0 wk
14 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
16 – 30 Apr
3 May
6-8 wk
11 Jun
14 Jun
2 wk after
11 Aug
11 wk after
Pinnate dahlia
Dahlia × pinnata
14 – 28 Apr
7 May
6-8 wk
9 Jun
18 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
24 Apr – 22 May
1 Jun
4-8 wk
19 Jun
29 Jun
3 wk after
19 Jun
19 Jun
3 wk after
Foxglove
Digitalis purpurea
20 Mar – 3 Apr
8-10 wk
29 May
0 wk
19 Jun
3 wk after
Busy lizzie
Impatiens walleriana
7 Apr – 5 May
7 Jun
8-12 wk
30 Jun
2 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
16 – 30 Apr
13 May
6-8 wk
11 Jun
24 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
18 Apr
8-10 wk
31 May
13 Jun
0 wk
Love in a mist
Nigella damascena
29 May
29 Jun
0 wk
2 Jun
19 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
16 – 30 Apr
23 Apr
6-8 wk
11 Jun
2 wk after
11 Aug
11 wk after
Purple-top vervain
Verbena bonariensis
8 Mar – 5 Apr
18 Apr
8-12 wk
31 May
13 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
12 Mar – 9 Apr
20 Mar
8-12 wk
4 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
19 Mar – 16 Apr
12 Apr
8-12 wk
11 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
16 – 30 Apr
26 Apr
6-8 wk
11 Jun
2 wk after
Corn poppy
Papaver rhoeas
29 May
14 Jul
0 wk
2 Jun
4 Jul
1 wk after
Snapdragon
Antirrhinum majus
6 Mar – 3 Apr
9 May
8-12 wk
29 May
4 Jul
0 wk
14 Jun
24 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
2 – 16 Apr
9 May
8-10 wk
11 Jun
4 Jul
2 wk after
Sweet pea
Lathyrus odoratus
3 – 24 Apr
30 May
5-8 wk
29 May
4 Jul
0 wk
Stock
Matthiola incana
3 – 17 Apr
2 Jun
6-8 wk
29 May
14 Jul
0 wk
19 Jun
4 Jul
3 wk after
Wormwood
Artemisia absinthium
3 – 17 Apr
3 May
6-8 wk
29 May
14 Jun
0 wk
19 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
23 Apr – 7 May
16 May
4-6 wk
4 Jun
13 Jun
1 wk after
Garden pansy
Viola × wittrockiana
20 Mar – 3 Apr
19 May
8-10 wk
29 May
14 Jul
0 wk
14 Jun
4 Jul
2 wk after
Petunia
Petunia
19 Mar – 16 Apr
19 Apr
8-12 wk
11 Jun
14 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
5 – 19 Apr
2 May
6-8 wk
31 May
13 Jun
0 wk
17 Jul
7 wk after
Common zinnia
Zinnia elegans
30 Apr – 14 May
20 May
4-6 wk
11 Jun
17 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
7 – 21 May
27 May
3-5 wk
11 Jun
17 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
30 Apr – 14 May
21 May
4-6 wk
11 Jun
18 Jun
2 wk after
17 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
19 Mar – 16 Apr
23 May
8-12 wk
11 Jun
18 Jul
2 wk after
Bee balm
Monarda didyma
6 Mar – 3 Apr
19 Apr
8-12 wk
29 May
14 Jun
0 wk
3 Jul
5 wk after
Yarrow
Achillea millefolium
3 – 17 Apr
3 Apr
6-8 wk
29 May
0 wk
19 Jun
3 wk after
Safflower
Carthamus tinctorius
29 May
14 Jun
0 wk
2 Jun
4 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
3 – 17 Apr
23 May
6-8 wk
29 May
4 Jul
0 wk
11 May
24 Jun
3 wk before
Bishop's flower
Ammi majus
17 Apr – 1 May
6 Jun
4-6 wk
29 May
4 Jul
0 wk
19 Jun
24 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
12 – 26 Mar
31 Mar
10-12 wk
4 Jun
9 Jun
1 wk after
Sunflower
Helianthus annuus
14 – 21 May
4 Jun
3-4 wk
11 Jun
25 Jun
2 wk after
3 Jul
5 wk after
China aster
Callistephus chinensis
16 – 30 Apr
24 May
6-8 wk
11 Jun
5 Jul
2 wk after
17 Jul
7 wk after
Annual phlox
Phlox drummondii
9 – 23 Apr
13 May
6-8 wk
4 Jun
24 Jun
1 wk after
17 Jul
7 wk after
Hollyhock
Alcea rosea
3 – 17 Apr
6-8 wk
29 May
0 wk
19 Jun
3 wk after
Alpine delphinium
Delphinium elatum
6 Mar – 3 Apr
19 Apr
8-12 wk
29 May
14 Jun
0 wk
3 Jul
5 wk after
African marigold
Tagetes erecta
16 – 30 Apr
13 May
6-8 wk
11 Jun
24 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
5 – 19 Apr
14 May
6-8 wk
31 May
25 Jun
0 wk
17 Jul
7 wk after
Wood sage
Salvia nemorosa
20 Mar – 3 Apr
9 Apr
8-10 wk
29 May
4 Jun
0 wk
3 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
2 – 30 Apr
6 May
6-10 wk
11 Jun
17 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
29 May
14 Jul
0 wk
2 Jun
4 Jul
1 wk after
Painted tongue
Salpiglossis sinuata
2 – 16 Apr
29 Apr
8-10 wk
11 Jun
24 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
3 – 17 Apr
3 May
6-8 wk
29 May
14 Jun
0 wk
19 Jun
3 wk after