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Method
Rel. frost
Last spring frost (0°C) 1 Jun Normal year · 20 years of data
Frost-free season 99 days 1 Jun – 8 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
13 Jun
5-7 wk
1 Jun
18 Jul
0 wk
2 Jun
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
20 Apr – 4 May
25 Jun
4-6 wk
1 Jun
23 Jul
0 wk
2 Jun
13 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
15 Mar – 12 Apr
26 Mar
8-12 wk
7 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
13 – 27 Apr
8 Jun
5-7 wk
1 Jun
13 Jul
0 wk
1 Jun
3 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
10 – 17 May
8 Jun
3-4 wk
7 Jun
29 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
10 – 17 May
1 Jun
4-5 wk
14 Jun
29 Jun
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)
Fleece
9 Mar – 6 Apr
25 Mar
8-12 wk
1 Jun
0 wk
7 Jun
1 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
2 Jun
0 wk
2 Jun
0 wk
Maize
Zea mays
Fleece
10 – 17 May
10 May
3-4 wk
7 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
6 – 13 May
28 Jun
3-4 wk
3 Jun
19 Jul
0 wk
14 Jun
9 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
1 Jun
3 Jul
0 wk
1 Jun
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
13 – 27 Apr
8 Jun
5-7 wk
1 Jun
13 Jul
0 wk
1 Jun
3 Jul
0 wk
Potato
Solanum tuberosum
30 Apr – 14 May
14 May
4-6 wk
11 Jun
11 Jun
1 wk after
11 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
13 – 27 Apr
18 Jun
5-7 wk
1 Jun
23 Jul
0 wk
2 Jun
13 Jul
0 wk
Pumpkin
Cucurbita pepo
Fleece
17 – 24 May
13 Jun
3-4 wk
14 Jun
4 Jul
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
6 – 13 May
18 May
3-4 wk
3 Jun
8 Jun
0 wk
14 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
20 Apr – 4 May
20 Jun
4-6 wk
1 Jun
18 Jul
0 wk
Lettuce
Lactuca sativa
4 – 11 May
7 Jul
3-4 wk
1 Jun
28 Jul
0 wk
2 Jun
18 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
20 Apr – 4 May
20 Jun
4-6 wk
1 Jun
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
4 – 18 May
20 May
2-4 wk
1 Jun
3 Jun
0 wk
1 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
2 Jun
0 wk
2 Jun
0 wk
Spinach
Spinacia oleracea
4 – 11 May
22 Jul
3-4 wk
1 Jun
12 Aug
0 wk
29 May
2 Aug
0 wk
Sweet potato
Ipomoea batatas
26 Jun – 10 Jul
4-6 wk
7 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
12 – 26 Apr
19 Apr
6-8 wk
7 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
10 – 24 May
15 Jun
2-4 wk
7 Jun
29 Jun
1 wk after
26 Jun
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
20 Apr – 4 May
20 Jun
4-6 wk
1 Jun
18 Jul
0 wk
Garden pea
Pisum sativum
4 – 11 May
22 Jun
3-4 wk
1 Jun
13 Jul
0 wk
2 Jun
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
3 – 17 May
22 May
4-6 wk
14 Jun
19 Jun
2 wk after
Lemon balm
Melissa officinalis
23 Mar – 6 Apr
18 May
8-10 wk
1 Jun
13 Jul
0 wk
26 Jun
3 Jul
4 wk after
Dill
Anethum graveolens
2 Jun
19 Jul
0 wk
Wild chives
Allium schoenoprasum
6 – 20 Apr
1 Jun
6-8 wk
1 Jun
13 Jul
0 wk
2 Jun
3 Jul
0 wk
Spearmint
Mentha spicata
9 Mar – 6 Apr
18 May
8-12 wk
1 Jun
13 Jul
0 wk
26 Jun
3 Jul
4 wk after
Coriander
Coriandrum sativum
1 Jun
8 Aug
0 wk
14 Jun
29 Jul
2 wk after
Garden sage
Salvia officinalis
25 Mar – 8 Apr
3 May
8-10 wk
3 Jun
28 Jun
0 wk
Common thyme
Thymus vulgaris
23 Mar – 6 Apr
8 May
8-10 wk
1 Jun
3 Jul
0 wk
Oregano
Origanum vulgare
6 – 20 Apr
22 May
6-8 wk
1 Jun
3 Jul
0 wk
26 Jun
4 wk after
Parsley
Petroselinum crispum
6 – 20 Apr
22 May
6-8 wk
1 Jun
3 Jul
0 wk
2 Jun
23 Jun
0 wk
Rosemary
Salvia rosmarinus
25 Feb – 25 Mar
29 Mar
10-14 wk
3 Jun
7 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
17 – 24 May
29 May
3-4 wk
14 Jun
19 Jun
2 wk after
Cornflower
Centaurea cyanus
1 Jun
13 Jul
0 wk
2 Jun
3 Jul
0 wk
Statice
Limonium sinuatum
5 – 19 Apr
21 Apr
8-10 wk
14 Jun
16 Jun
2 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
19 Apr – 3 May
5 May
6-8 wk
14 Jun
16 Jun
2 wk after
7 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
17 Apr – 1 May
7 May
6-8 wk
12 Jun
18 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
1 – 29 May
21 May
4-8 wk
26 Jun
4 wk after
26 Jun
4 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
9 Jun
8-12 wk
3 Jul
4 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
19 Apr – 3 May
15 May
6-8 wk
14 Jun
26 Jun
2 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
14 Apr
8-10 wk
3 Jun
9 Jun
0 wk
Love in a mist
Nigella damascena
1 Jun
28 Jun
0 wk
2 Jun
18 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Fleece
12 – 26 Apr
3 May
6-8 wk
7 Jun
14 Jun
1 wk after
21 Jul
7 wk after
Purple-top vervain
Verbena bonariensis
11 Mar – 8 Apr
14 Apr
8-12 wk
3 Jun
9 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
15 Mar – 12 Apr
19 Mar
8-12 wk
7 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
15 Mar – 12 Apr
23 Apr
8-12 wk
7 Jun
18 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
12 – 26 Apr
7 May
6-8 wk
7 Jun
18 Jun
1 wk after
Corn poppy
Papaver rhoeas
1 Jun
13 Jul
0 wk
2 Jun
3 Jul
0 wk
Snapdragon
Antirrhinum majus
9 Mar – 6 Apr
8 May
8-12 wk
1 Jun
3 Jul
0 wk
11 Jun
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
Fleece
5 – 19 Apr
9 May
8-10 wk
14 Jun
4 Jul
2 wk after
Sweet pea
Lathyrus odoratus
6 – 27 Apr
29 May
5-8 wk
1 Jun
3 Jul
0 wk
Stock
Matthiola incana
6 – 20 Apr
1 Jun
6-8 wk
1 Jun
13 Jul
0 wk
14 Jun
3 Jul
2 wk after
Wormwood
Artemisia absinthium
6 – 20 Apr
2 May
6-8 wk
1 Jun
13 Jun
0 wk
14 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
26 Apr – 10 May
16 May
4-6 wk
7 Jun
13 Jun
1 wk after
Garden pansy
Viola × wittrockiana
23 Mar – 6 Apr
18 May
8-10 wk
1 Jun
13 Jul
0 wk
11 Jun
3 Jul
1 wk after
Petunia
Petunia
22 Mar – 19 Apr
21 Apr
8-12 wk
14 Jun
16 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
8 – 22 Apr
28 Apr
6-8 wk
3 Jun
9 Jun
0 wk
14 Jul
6 wk after
Common zinnia
Zinnia elegans
3 – 17 May
22 May
4-6 wk
14 Jun
19 Jun
2 wk after
Common morning glory
Ipomoea purpurea
Fleece
10 – 24 May
29 May
3-5 wk
14 Jun
19 Jun
2 wk after
Garden cosmos
Cosmos bipinnatus
3 – 17 May
21 May
4-6 wk
14 Jun
18 Jun
2 wk after
14 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
22 Mar – 19 Apr
23 May
8-12 wk
14 Jun
18 Jul
2 wk after
Bee balm
Monarda didyma
9 Mar – 6 Apr
18 Apr
8-12 wk
1 Jun
13 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
13 Jun
0 wk
2 Jun
3 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
6 – 20 Apr
22 May
6-8 wk
1 Jun
3 Jul
0 wk
16 May
23 Jun
2 wk before
Bishop's flower
Ammi majus
20 Apr – 4 May
5 Jun
4-6 wk
1 Jun
3 Jul
0 wk
14 Jun
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
15 – 29 Mar
31 Mar
10-12 wk
7 Jun
9 Jun
1 wk after
Sunflower
Helianthus annuus
17 – 24 May
6 Jun
3-4 wk
14 Jun
27 Jun
2 wk after
26 Jun
4 wk after
China aster
Callistephus chinensis
19 Apr – 3 May
26 May
6-8 wk
14 Jun
7 Jul
2 wk after
14 Jul
6 wk after
Annual phlox
Phlox drummondii
12 – 26 Apr
15 May
6-8 wk
7 Jun
26 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
18 Apr
8-12 wk
1 Jun
13 Jun
0 wk
26 Jun
4 wk after
African marigold
Tagetes erecta
19 Apr – 3 May
15 May
6-8 wk
14 Jun
26 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
8 – 22 Apr
16 May
6-8 wk
3 Jun
27 Jun
0 wk
14 Jul
6 wk after
Wood sage
Salvia nemorosa
23 Mar – 6 Apr
8 Apr
8-10 wk
1 Jun
3 Jun
0 wk
26 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
Fleece
5 Apr – 3 May
8 May
6-10 wk
14 Jun
19 Jun
2 wk after
California goldenpoppy
Eschscholzia californica
1 Jun
13 Jul
0 wk
2 Jun
3 Jul
0 wk
Painted tongue
Salpiglossis sinuata
5 – 19 Apr
23 Apr
8-10 wk
14 Jun
18 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
6 – 20 Apr
2 May
6-8 wk
1 Jun
13 Jun
0 wk
14 Jun
2 wk after