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Method
Rel. frost
Last spring frost (0°C) 24 May Normal year · 20 years of data
Frost-free season 126 days 24 May – 27 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)
5 – 19 Apr
10 Jun
5-7 wk
24 May
15 Jul
0 wk
25 May
5 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
12 – 26 Apr
22 Jun
4-6 wk
24 May
20 Jul
0 wk
25 May
10 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
7 Mar – 4 Apr
8-12 wk
30 May
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
5 – 19 Apr
5 Jun
5-7 wk
24 May
10 Jul
0 wk
24 May
30 Jun
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
2 – 9 May
6 Jun
3-4 wk
30 May
27 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
2 – 9 May
2 Jun
4-5 wk
6 Jun
30 Jun
2 wk after
18 Jun
20 Jun
4 wk after
Butter bean
Phaseolus lunatus
Season too short
4 – 11 Jun
3-4 wk
2 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Fleece
1 – 29 Mar
26 Mar
8-12 wk
24 May
0 wk
30 May
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
21 May
10 Jun
0 wk
21 May
31 May
0 wk
Maize
Zea mays
Greenhouse
26 Apr – 3 May
27 May
3-4 wk
24 May
17 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
28 Apr – 5 May
29 Jun
3-4 wk
26 May
20 Jul
0 wk
6 Jun
10 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
24 May
30 Jun
0 wk
24 May
20 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
5 – 19 Apr
5 Jun
5-7 wk
24 May
10 Jul
0 wk
24 May
30 Jun
0 wk
Potato
Solanum tuberosum
Greenhouse
9 – 23 Apr
2 Jun
4-6 wk
21 May
30 Jun
0 wk
21 May
20 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
5 – 19 Apr
15 Jun
5-7 wk
24 May
20 Jul
0 wk
25 May
10 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
9 – 16 May
11 Jun
3-4 wk
6 Jun
2 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
26 Apr – 3 May
5 May
3-4 wk
24 May
26 May
0 wk
30 May
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
12 – 26 Apr
17 Jun
4-6 wk
24 May
15 Jul
0 wk
Lettuce
Lactuca sativa
26 Apr – 3 May
4 Jul
3-4 wk
24 May
25 Jul
0 wk
25 May
15 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
12 – 26 Apr
17 Jun
4-6 wk
24 May
15 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
20 Apr – 4 May
27 May
2-4 wk
18 May
10 Jun
1 wk before
18 May
31 May
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
21 May
10 Jun
0 wk
21 May
31 May
0 wk
Spinach
Spinacia oleracea
26 Apr – 3 May
19 Jul
3-4 wk
24 May
9 Aug
0 wk
21 May
30 Jul
0 wk
Sweet potato
Ipomoea batatas
18 Jun – 2 Jul
4-6 wk
30 Jul
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
29 Mar – 12 Apr
6 May
6-8 wk
24 May
17 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
2 – 16 May
13 Jun
2-4 wk
30 May
27 Jun
1 wk after
18 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
12 – 26 Apr
17 Jun
4-6 wk
24 May
15 Jul
0 wk
Garden pea
Pisum sativum
26 Apr – 3 May
19 Jun
3-4 wk
24 May
10 Jul
0 wk
25 May
30 Jun
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
18 Apr – 2 May
28 May
4-6 wk
30 May
25 Jun
1 wk after
Lemon balm
Melissa officinalis
15 – 29 Mar
15 May
8-10 wk
24 May
10 Jul
0 wk
18 Jun
30 Jun
4 wk after
Dill
Anethum graveolens
25 May
20 Jul
0 wk
Wild chives
Allium schoenoprasum
29 Mar – 12 Apr
29 May
6-8 wk
24 May
10 Jul
0 wk
25 May
30 Jun
0 wk
Spearmint
Mentha spicata
1 – 29 Mar
15 May
8-12 wk
24 May
10 Jul
0 wk
18 Jun
30 Jun
4 wk after
Coriander
Coriandrum sativum
24 May
9 Aug
0 wk
6 Jun
30 Jul
2 wk after
Garden sage
Salvia officinalis
17 – 31 Mar
30 Apr
8-10 wk
26 May
25 Jun
0 wk
Common thyme
Thymus vulgaris
15 – 29 Mar
5 May
8-10 wk
24 May
30 Jun
0 wk
Oregano
Origanum vulgare
29 Mar – 12 Apr
19 May
6-8 wk
24 May
30 Jun
0 wk
18 Jun
20 Jun
4 wk after
Parsley
Petroselinum crispum
29 Mar – 12 Apr
19 May
6-8 wk
24 May
30 Jun
0 wk
25 May
20 Jun
0 wk
Rosemary
Salvia rosmarinus
17 Feb – 17 Mar
1 Apr
10-14 wk
26 May
10 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
2 – 9 May
4 Jun
3-4 wk
30 May
25 Jun
1 wk after
Cornflower
Centaurea cyanus
24 May
10 Jul
0 wk
25 May
30 Jun
0 wk
Statice
Limonium sinuatum
Fleece
21 Mar – 4 Apr
26 Apr
8-10 wk
30 May
21 Jun
1 wk after
Sweet William
Dianthus barbatus
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
3 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
4 – 18 Apr
10 May
6-8 wk
30 May
21 Jun
1 wk after
13 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
9 – 23 Apr
4 May
6-8 wk
4 Jun
15 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Greenhouse
4 Apr – 2 May
2 Jun
4-8 wk
30 May
30 Jun
1 wk after
30 May
20 Jun
1 wk after
Foxglove
Digitalis purpurea
15 – 29 Mar
8-10 wk
24 May
0 wk
6 Jun
2 wk after
Busy lizzie
Impatiens walleriana
2 – 30 Apr
7 Jun
8-12 wk
25 Jun
2 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
4 – 18 Apr
20 May
6-8 wk
30 May
1 Jul
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
25 Apr – 9 May
4-6 wk
6 Jun
2 wk after
Chinese lantern
Physalis alkekengi
17 – 31 Mar
15 Apr
8-10 wk
26 May
10 Jun
0 wk
Love in a mist
Nigella damascena
24 May
25 Jun
0 wk
25 May
15 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
4 – 18 Apr
30 Apr
6-8 wk
30 May
11 Jun
1 wk after
13 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
3 – 31 Mar
15 Apr
8-12 wk
26 May
10 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
1 – 29 Mar
16 Mar
8-12 wk
24 May
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
7 Mar – 4 Apr
20 Apr
8-12 wk
30 May
15 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
4 – 18 Apr
4 May
6-8 wk
30 May
15 Jun
1 wk after
Corn poppy
Papaver rhoeas
24 May
10 Jul
0 wk
25 May
30 Jun
0 wk
Snapdragon
Antirrhinum majus
1 – 29 Mar
5 May
8-12 wk
24 May
30 Jun
0 wk
3 Jun
20 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
28 Mar – 11 Apr
6 May
8-10 wk
6 Jun
1 Jul
2 wk after
Sweet pea
Lathyrus odoratus
29 Mar – 19 Apr
26 May
5-8 wk
24 May
30 Jun
0 wk
Stock
Matthiola incana
29 Mar – 12 Apr
29 May
6-8 wk
24 May
10 Jul
0 wk
6 Jun
30 Jun
2 wk after
Wormwood
Artemisia absinthium
29 Mar – 12 Apr
29 Apr
6-8 wk
24 May
10 Jun
0 wk
6 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
18 Apr – 2 May
13 May
4-6 wk
30 May
10 Jun
1 wk after
Garden pansy
Viola × wittrockiana
15 – 29 Mar
15 May
8-10 wk
24 May
10 Jul
0 wk
3 Jun
30 Jun
1 wk after
Petunia
Petunia
Fleece
7 Mar – 4 Apr
26 Apr
8-12 wk
30 May
21 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
31 Mar – 14 Apr
29 Apr
6-8 wk
26 May
10 Jun
0 wk
6 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
18 Apr – 2 May
28 May
4-6 wk
30 May
25 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
25 Apr – 9 May
4 Jun
3-5 wk
30 May
25 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
18 Apr – 2 May
30 May
4-6 wk
30 May
27 Jun
1 wk after
18 Jun
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
14 Mar – 11 Apr
20 May
8-12 wk
6 Jun
15 Jul
2 wk after
Bee balm
Monarda didyma
1 – 29 Mar
15 Apr
8-12 wk
24 May
10 Jun
0 wk
18 Jun
4 wk after
Yarrow
Achillea millefolium
29 Mar – 12 Apr
30 Mar
6-8 wk
24 May
0 wk
6 Jun
2 wk after
Safflower
Carthamus tinctorius
24 May
10 Jun
0 wk
25 May
31 May
0 wk
Iceland poppy
Papaver nudicaule
Season too short
29 Mar – 12 Apr
19 May
6-8 wk
24 May
30 Jun
0 wk
8 May
20 Jun
2 wk before
Bishop's flower
Ammi majus
12 – 26 Apr
2 Jun
4-6 wk
24 May
30 Jun
0 wk
6 Jun
20 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
7 – 21 Mar
29 Mar
10-12 wk
30 May
7 Jun
1 wk after
Sunflower
Helianthus annuus
9 – 16 May
9 Jun
3-4 wk
6 Jun
30 Jun
2 wk after
18 Jun
20 Jun
4 wk after
China aster
Callistephus chinensis
11 – 25 Apr
29 May
6-8 wk
6 Jun
10 Jul
2 wk after
6 Jul
6 wk after
Annual phlox
Phlox drummondii
4 – 18 Apr
13 May
6-8 wk
30 May
24 Jun
1 wk after
6 Jul
6 wk after
Hollyhock
Alcea rosea
29 Mar – 12 Apr
6-8 wk
24 May
0 wk
6 Jun
2 wk after
Alpine delphinium
Delphinium elatum
1 – 29 Mar
15 Apr
8-12 wk
24 May
10 Jun
0 wk
18 Jun
4 wk after
African marigold
Tagetes erecta
Fleece
4 – 18 Apr
20 May
6-8 wk
30 May
1 Jul
1 wk after
Black-eyed Susan
Rudbeckia hirta
31 Mar – 14 Apr
19 May
6-8 wk
26 May
30 Jun
0 wk
6 Jul
6 wk after
Wood sage
Salvia nemorosa
15 – 29 Mar
5 Apr
8-10 wk
24 May
31 May
0 wk
18 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
21 Mar – 18 Apr
14 May
6-10 wk
30 May
25 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
24 May
10 Jul
0 wk
25 May
30 Jun
0 wk
Painted tongue
Salpiglossis sinuata
28 Mar – 11 Apr
3 May
8-10 wk
6 Jun
28 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
29 Mar – 12 Apr
29 Apr
6-8 wk
24 May
10 Jun
0 wk
6 Jun
2 wk after