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Method
Rel. frost
Last spring frost (0°C) 9 Jun Normal year · 20 years of data
Frost-free season 84 days 9 Jun – 1 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)
21 Apr – 5 May
15 Jun
5-7 wk
9 Jun
20 Jul
0 wk
13 Jun
10 Jul
1 wk after
Broccoli
Brassica oleracea (Italica-gruppen)
28 Apr – 12 May
27 Jun
4-6 wk
9 Jun
25 Jul
0 wk
13 Jun
15 Jul
1 wk after
Chili pepper
Capsicum annuum
Season too short
23 Mar – 20 Apr
8-12 wk
15 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
21 Apr – 5 May
10 Jun
5-7 wk
9 Jun
15 Jul
0 wk
9 Jun
5 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
18 – 25 May
27 May
3-4 wk
15 Jun
17 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Fleece
18 – 25 May
28 May
4-5 wk
22 Jun
25 Jun
2 wk after
14 Jul
5 wk after
Butter bean
Phaseolus lunatus
Season too short
20 – 27 Jun
3-4 wk
18 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Greenhouse
17 Mar – 14 Apr
31 Mar
8-12 wk
9 Jun
0 wk
9 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
13 Jun
1 wk after
13 Jun
1 wk after
Maize
Zea mays
Greenhouse
12 – 19 May
17 May
3-4 wk
9 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
14 – 21 May
24 Jun
3-4 wk
11 Jun
15 Jul
0 wk
30 Jun
5 Jul
3 wk after
Carrot
Daucus carota subsp. sativus var. sativus
9 Jun
3 Jul
0 wk
9 Jun
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
21 Apr – 5 May
10 Jun
5-7 wk
9 Jun
15 Jul
0 wk
9 Jun
5 Jul
0 wk
Potato
Solanum tuberosum
14 – 28 May
14 May
4-6 wk
25 Jun
2 wk after
25 Jun
2 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
21 Apr – 5 May
18 Jun
5-7 wk
9 Jun
23 Jul
0 wk
13 Jun
13 Jul
1 wk after
Pumpkin
Cucurbita pepo
Fleece
25 May – 1 Jun
1 Jun
3-4 wk
22 Jun
22 Jun
2 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
14 – 21 May
16 May
3-4 wk
11 Jun
0 wk
30 Jun
3 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
28 Apr – 12 May
22 Jun
4-6 wk
9 Jun
20 Jul
0 wk
Lettuce
Lactuca sativa
12 – 19 May
7 Jul
3-4 wk
9 Jun
28 Jul
0 wk
13 Jun
18 Jul
1 wk after
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
28 Apr – 12 May
22 Jun
4-6 wk
9 Jun
20 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
12 – 26 May
22 May
2-4 wk
9 Jun
0 wk
9 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
13 Jun
1 wk after
13 Jun
1 wk after
Spinach
Spinacia oleracea
12 – 19 May
24 Jul
3-4 wk
9 Jun
14 Aug
0 wk
5 Jun
4 Aug
1 wk before
Sweet potato
Ipomoea batatas
11 – 25 Jul
4-6 wk
22 Aug
11 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
14 – 28 Apr
26 Apr
6-8 wk
9 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
18 May – 1 Jun
3 Jun
2-4 wk
15 Jun
17 Jun
1 wk after
14 Jul
5 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
28 Apr – 12 May
22 Jun
4-6 wk
9 Jun
20 Jul
0 wk
Garden pea
Pisum sativum
12 – 19 May
22 Jun
3-4 wk
9 Jun
13 Jul
0 wk
13 Jun
3 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
Greenhouse
4 – 18 May
29 May
4-6 wk
15 Jun
26 Jun
1 wk after
Lemon balm
Melissa officinalis
31 Mar – 14 Apr
18 May
8-10 wk
9 Jun
13 Jul
0 wk
14 Jul
5 wk after
Dill
Anethum graveolens
13 Jun
15 Jul
1 wk after
Wild chives
Allium schoenoprasum
14 – 28 Apr
3 Jun
6-8 wk
9 Jun
15 Jul
0 wk
13 Jun
5 Jul
1 wk after
Spearmint
Mentha spicata
17 Mar – 14 Apr
20 May
8-12 wk
9 Jun
15 Jul
0 wk
14 Jul
5 wk after
Coriander
Coriandrum sativum
9 Jun
4 Aug
0 wk
30 Jun
25 Jul
3 wk after
Garden sage
Salvia officinalis
2 – 16 Apr
5 May
8-10 wk
11 Jun
30 Jun
0 wk
Common thyme
Thymus vulgaris
31 Mar – 14 Apr
10 May
8-10 wk
9 Jun
5 Jul
0 wk
Oregano
Origanum vulgare
14 – 28 Apr
24 May
6-8 wk
9 Jun
5 Jul
0 wk
14 Jul
5 wk after
Parsley
Petroselinum crispum
14 – 28 Apr
24 May
6-8 wk
9 Jun
5 Jul
0 wk
13 Jun
25 Jun
1 wk after
Rosemary
Salvia rosmarinus
5 Mar – 2 Apr
17 Mar
10-14 wk
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
18 – 25 May
5 Jun
3-4 wk
15 Jun
26 Jun
1 wk after
Cornflower
Centaurea cyanus
9 Jun
15 Jul
0 wk
13 Jun
5 Jul
1 wk after
Statice
Limonium sinuatum
Fleece
6 – 20 Apr
25 Apr
8-10 wk
15 Jun
20 Jun
1 wk after
Sweet William
Dianthus barbatus
14 – 28 Apr
6-8 wk
9 Jun
0 wk
25 Jun
2 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
20 Apr – 4 May
9 May
6-8 wk
15 Jun
20 Jun
1 wk after
7 Aug
8 wk after
Pinnate dahlia
Dahlia × pinnata
25 Apr – 9 May
5 May
6-8 wk
20 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
5 May – 2 Jun
27 May
4-8 wk
30 Jun
3 wk after
30 Jun
3 wk after
Foxglove
Digitalis purpurea
31 Mar – 14 Apr
8-10 wk
9 Jun
0 wk
30 Jun
3 wk after
Busy lizzie
Impatiens walleriana
Fleece
30 Mar – 27 Apr
16 Jun
8-12 wk
22 Jun
11 Aug
2 wk after
Creeping zinnia
Sanvitalia procumbens
27 Apr – 11 May
10 May
6-8 wk
22 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
11 – 25 May
4-6 wk
22 Jun
2 wk after
Chinese lantern
Physalis alkekengi
2 – 16 Apr
10 Apr
8-10 wk
11 Jun
0 wk
Love in a mist
Nigella damascena
9 Jun
28 Jun
0 wk
13 Jun
18 Jun
1 wk after
Strawflower
Xerochrysum bracteatum
Fleece
20 Apr – 4 May
29 Apr
6-8 wk
15 Jun
1 wk after
7 Aug
8 wk after
Purple-top vervain
Verbena bonariensis
19 Mar – 16 Apr
10 Apr
8-12 wk
11 Jun
0 wk
Cardoon
Cynara cardunculus
Greenhouse
17 Mar – 14 Apr
21 Mar
8-12 wk
9 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
23 Mar – 20 Apr
21 Apr
8-12 wk
15 Jun
16 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
20 Apr – 4 May
5 May
6-8 wk
15 Jun
16 Jun
1 wk after
Corn poppy
Papaver rhoeas
9 Jun
13 Jul
0 wk
13 Jun
3 Jul
1 wk after
Snapdragon
Antirrhinum majus
17 Mar – 14 Apr
8 May
8-12 wk
9 Jun
3 Jul
0 wk
25 Jun
2 wk after
Flossflower
Ageratum houstonianum
Fleece
13 – 27 Apr
5 May
8-10 wk
22 Jun
30 Jun
2 wk after
Sweet pea
Lathyrus odoratus
14 Apr – 5 May
31 May
5-8 wk
9 Jun
5 Jul
0 wk
Stock
Matthiola incana
14 – 28 Apr
1 Jun
6-8 wk
9 Jun
13 Jul
0 wk
30 Jun
3 Jul
3 wk after
Wormwood
Artemisia absinthium
14 – 28 Apr
4 May
6-8 wk
9 Jun
15 Jun
0 wk
30 Jun
3 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
4 – 18 May
14 May
4-6 wk
15 Jun
1 wk after
Garden pansy
Viola × wittrockiana
31 Mar – 14 Apr
20 May
8-10 wk
9 Jun
15 Jul
0 wk
25 Jun
5 Jul
2 wk after
Petunia
Petunia
Fleece
23 Mar – 20 Apr
25 Apr
8-12 wk
15 Jun
20 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
16 – 30 Apr
24 Apr
6-8 wk
11 Jun
0 wk
28 Jul
7 wk after
Common zinnia
Zinnia elegans
Fleece
4 – 18 May
29 May
4-6 wk
15 Jun
26 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
11 – 25 May
5 Jun
3-5 wk
15 Jun
26 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
11 – 25 May
19 May
4-6 wk
22 Jun
2 wk after
28 Jul
7 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
30 Mar – 27 Apr
21 May
8-12 wk
22 Jun
16 Jul
2 wk after
Bee balm
Monarda didyma
17 Mar – 14 Apr
18 Apr
8-12 wk
9 Jun
13 Jun
0 wk
14 Jul
5 wk after
Yarrow
Achillea millefolium
14 – 28 Apr
6-8 wk
9 Jun
0 wk
30 Jun
3 wk after
Safflower
Carthamus tinctorius
9 Jun
15 Jun
0 wk
13 Jun
1 wk after
Iceland poppy
Papaver nudicaule
Season too short
14 – 28 Apr
24 May
6-8 wk
9 Jun
5 Jul
0 wk
22 May
25 Jun
3 wk before
Bishop's flower
Ammi majus
28 Apr – 12 May
5 Jun
4-6 wk
9 Jun
3 Jul
0 wk
30 Jun
3 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
23 Mar – 6 Apr
26 Mar
10-12 wk
15 Jun
1 wk after
Sunflower
Helianthus annuus
25 May – 1 Jun
25 May
3-4 wk
22 Jun
2 wk after
14 Jul
5 wk after
China aster
Callistephus chinensis
27 Apr – 11 May
14 May
6-8 wk
22 Jun
25 Jun
2 wk after
28 Jul
7 wk after
Annual phlox
Phlox drummondii
20 Apr – 4 May
10 May
6-8 wk
15 Jun
21 Jun
1 wk after
28 Jul
7 wk after
Hollyhock
Alcea rosea
14 – 28 Apr
6-8 wk
9 Jun
0 wk
30 Jun
3 wk after
Alpine delphinium
Delphinium elatum
17 Mar – 14 Apr
18 Apr
8-12 wk
9 Jun
13 Jun
0 wk
14 Jul
5 wk after
African marigold
Tagetes erecta
27 Apr – 11 May
10 May
6-8 wk
22 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
16 – 30 Apr
4 May
6-8 wk
11 Jun
15 Jun
0 wk
28 Jul
7 wk after
Wood sage
Salvia nemorosa
31 Mar – 14 Apr
8 Apr
8-10 wk
9 Jun
0 wk
14 Jul
5 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
6 Apr – 4 May
15 May
6-10 wk
15 Jun
26 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
9 Jun
8 Jul
0 wk
13 Jun
28 Jun
1 wk after
Painted tongue
Salpiglossis sinuata
Fleece
6 – 20 Apr
30 Apr
8-10 wk
15 Jun
25 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
14 – 28 Apr
4 May
6-8 wk
9 Jun
15 Jun
0 wk
30 Jun
3 wk after