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