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Method
Rel. frost
Last spring frost (0°C) 10 Jun Normal year · 20 years of data
Frost-free season 80 days 10 Jun – 29 Aug
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)
22 Apr – 6 May
11 Jun
5-7 wk
10 Jun
16 Jul
0 wk
11 Jun
6 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
29 Apr – 13 May
23 Jun
4-6 wk
10 Jun
21 Jul
0 wk
11 Jun
11 Jul
0 wk
Chili pepper
Capsicum annuum
Season too short
24 Mar – 21 Apr
8-12 wk
16 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
22 Apr – 6 May
6 Jun
5-7 wk
10 Jun
11 Jul
0 wk
10 Jun
1 Jul
0 wk
Garden cucumber
Cucumis sativus
Greenhouse
19 – 26 May
25 May
3-4 wk
16 Jun
1 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
12 – 19 May
3 Jun
4-5 wk
16 Jun
1 Jul
1 wk after
23 Jun
2 wk after
Butter bean
Phaseolus lunatus
Season too short
21 – 28 Jun
3-4 wk
19 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
Season too short
18 Mar – 15 Apr
19 Mar
8-12 wk
10 Jun
0 wk
10 Jun
0 wk
Onion (sets)
Allium cepa (Cepa-gruppen)
Fleece
7 Jun
0 wk
7 Jun
0 wk
Maize
Zea mays
Greenhouse
13 – 20 May
15 May
3-4 wk
10 Jun
0 wk
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
15 – 22 May
25 Jun
3-4 wk
12 Jun
16 Jul
0 wk
23 Jun
6 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
10 Jun
1 Jul
0 wk
10 Jun
21 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
22 Apr – 6 May
6 Jun
5-7 wk
10 Jun
11 Jul
0 wk
10 Jun
1 Jul
0 wk
Potato
Solanum tuberosum
Fleece
30 Apr – 14 May
9 May
4-6 wk
11 Jun
0 wk
11 Jun
0 wk
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
22 Apr – 6 May
16 Jun
5-7 wk
10 Jun
21 Jul
0 wk
11 Jun
11 Jul
0 wk
Pumpkin
Cucurbita pepo
Greenhouse
19 – 26 May
16 Jun
3-4 wk
16 Jun
7 Jul
1 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
Fleece
13 – 20 May
15 May
3-4 wk
10 Jun
0 wk
16 Jun
1 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
29 Apr – 13 May
18 Jun
4-6 wk
10 Jun
16 Jul
0 wk
Lettuce
Lactuca sativa
13 – 20 May
5 Jul
3-4 wk
10 Jun
26 Jul
0 wk
11 Jun
16 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
29 Apr – 13 May
18 Jun
4-6 wk
10 Jun
16 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
Fleece
7 – 21 May
16 May
2-4 wk
4 Jun
1 wk before
4 Jun
1 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
Fleece
7 Jun
0 wk
7 Jun
0 wk
Spinach
Spinacia oleracea
13 – 20 May
20 Jul
3-4 wk
10 Jun
10 Aug
0 wk
7 Jun
31 Jul
0 wk
Sweet potato
Ipomoea batatas
5 – 19 Jul
4-6 wk
16 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Greenhouse
15 – 29 Apr
24 Apr
6-8 wk
10 Jun
0 wk
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
Fleece
19 May – 2 Jun
1 Jun
2-4 wk
16 Jun
1 wk after
5 Jul
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
29 Apr – 13 May
18 Jun
4-6 wk
10 Jun
16 Jul
0 wk
Garden pea
Pisum sativum
13 – 20 May
20 Jun
3-4 wk
10 Jun
11 Jul
0 wk
11 Jun
1 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
Greenhouse
5 – 19 May
25 May
4-6 wk
16 Jun
22 Jun
1 wk after
Lemon balm
Melissa officinalis
1 – 15 Apr
16 May
8-10 wk
10 Jun
11 Jul
0 wk
5 Jul
4 wk after
Dill
Anethum graveolens
11 Jun
16 Jul
0 wk
Wild chives
Allium schoenoprasum
15 – 29 Apr
30 May
6-8 wk
10 Jun
11 Jul
0 wk
11 Jun
1 Jul
0 wk
Spearmint
Mentha spicata
18 Mar – 15 Apr
16 May
8-12 wk
10 Jun
11 Jul
0 wk
5 Jul
4 wk after
Coriander
Coriandrum sativum
10 Jun
5 Aug
0 wk
23 Jun
26 Jul
2 wk after
Garden sage
Salvia officinalis
3 – 17 Apr
1 May
8-10 wk
12 Jun
26 Jun
0 wk
Common thyme
Thymus vulgaris
1 – 15 Apr
6 May
8-10 wk
10 Jun
1 Jul
0 wk
Oregano
Origanum vulgare
15 – 29 Apr
20 May
6-8 wk
10 Jun
1 Jul
0 wk
5 Jul
4 wk after
Parsley
Petroselinum crispum
15 – 29 Apr
20 May
6-8 wk
10 Jun
1 Jul
0 wk
11 Jun
21 Jun
0 wk
Rosemary
Salvia rosmarinus
Fleece
4 Mar – 1 Apr
2 Apr
10-14 wk
10 Jun
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
19 – 26 May
1 Jun
3-4 wk
16 Jun
22 Jun
1 wk after
Cornflower
Centaurea cyanus
10 Jun
11 Jul
0 wk
11 Jun
1 Jul
0 wk
Statice
Limonium sinuatum
Fleece
7 – 21 Apr
24 Apr
8-10 wk
16 Jun
19 Jun
1 wk after
Sweet William
Dianthus barbatus
15 – 29 Apr
6-8 wk
10 Jun
0 wk
20 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
21 Apr – 5 May
8 May
6-8 wk
16 Jun
19 Jun
1 wk after
30 Jul
7 wk after
Pinnate dahlia
Dahlia × pinnata
Fleece
17 Apr – 1 May
14 May
6-8 wk
12 Jun
25 Jun
0 wk
Pinnate dahlia (tubers)
Dahlia × pinnata
Fleece
28 Apr – 26 May
28 May
4-8 wk
23 Jun
25 Jun
2 wk after
23 Jun
2 wk after
Foxglove
Digitalis purpurea
1 – 15 Apr
8-10 wk
10 Jun
0 wk
23 Jun
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
31 Mar – 28 Apr
12 Jun
8-12 wk
23 Jun
7 Aug
2 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
21 Apr – 5 May
18 May
6-8 wk
16 Jun
29 Jun
1 wk after
Hyacinth bean
Dolichos lablab
Season too short
12 – 26 May
4-6 wk
23 Jun
2 wk after
Chinese lantern
Physalis alkekengi
3 – 17 Apr
11 Apr
8-10 wk
12 Jun
0 wk
Love in a mist
Nigella damascena
10 Jun
26 Jun
0 wk
11 Jun
16 Jun
0 wk
Strawflower
Xerochrysum bracteatum
Greenhouse
15 – 29 Apr
7 May
6-8 wk
10 Jun
18 Jun
0 wk
12 Jul
5 wk after
Purple-top vervain
Verbena bonariensis
20 Mar – 17 Apr
11 Apr
8-12 wk
12 Jun
0 wk
Cardoon
Cynara cardunculus
Season too short
18 Mar – 15 Apr
8-12 wk
10 Jun
0 wk
Regal-foxtail
Ptilotus nobilis
Greenhouse
24 Mar – 21 Apr
17 Apr
8-12 wk
16 Jun
1 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
21 Apr – 5 May
1 May
6-8 wk
16 Jun
1 wk after
Corn poppy
Papaver rhoeas
10 Jun
11 Jul
0 wk
11 Jun
1 Jul
0 wk
Snapdragon
Antirrhinum majus
18 Mar – 15 Apr
6 May
8-12 wk
10 Jun
1 Jul
0 wk
20 Jun
21 Jun
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
7 – 21 Apr
13 May
8-10 wk
16 Jun
8 Jul
1 wk after
Sweet pea
Lathyrus odoratus
15 Apr – 6 May
27 May
5-8 wk
10 Jun
1 Jul
0 wk
Stock
Matthiola incana
15 – 29 Apr
30 May
6-8 wk
10 Jun
11 Jul
0 wk
23 Jun
1 Jul
2 wk after
Wormwood
Artemisia absinthium
15 – 29 Apr
30 Apr
6-8 wk
10 Jun
11 Jun
0 wk
23 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Season too short
5 – 19 May
10 May
4-6 wk
16 Jun
1 wk after
Garden pansy
Viola × wittrockiana
1 – 15 Apr
16 May
8-10 wk
10 Jun
11 Jul
0 wk
20 Jun
1 Jul
1 wk after
Petunia
Petunia
Fleece
24 Mar – 21 Apr
24 Apr
8-12 wk
16 Jun
19 Jun
1 wk after
Sweet Scabious
Scabiosa atropurpurea
17 Apr – 1 May
25 Apr
6-8 wk
12 Jun
0 wk
23 Jul
6 wk after
Common zinnia
Zinnia elegans
Fleece
5 – 19 May
25 May
4-6 wk
16 Jun
22 Jun
1 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
12 – 26 May
1 Jun
3-5 wk
16 Jun
22 Jun
1 wk after
Garden cosmos
Cosmos bipinnatus
Fleece
5 – 19 May
28 May
4-6 wk
16 Jun
25 Jun
1 wk after
5 Jul
4 wk after
Scarlet milkweed
Asclepias curassavica
Greenhouse
31 Mar – 28 Apr
17 May
8-12 wk
23 Jun
12 Jul
2 wk after
Bee balm
Monarda didyma
18 Mar – 15 Apr
16 Apr
8-12 wk
10 Jun
11 Jun
0 wk
5 Jul
4 wk after
Yarrow
Achillea millefolium
15 – 29 Apr
6-8 wk
10 Jun
0 wk
23 Jun
2 wk after
Safflower
Carthamus tinctorius
10 Jun
11 Jun
0 wk
11 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
15 – 29 Apr
20 May
6-8 wk
10 Jun
1 Jul
0 wk
25 May
21 Jun
2 wk before
Bishop's flower
Ammi majus
29 Apr – 13 May
3 Jun
4-6 wk
10 Jun
1 Jul
0 wk
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Season too short
24 Mar – 7 Apr
27 Mar
10-12 wk
16 Jun
1 wk after
Sunflower
Helianthus annuus
Fleece
19 – 26 May
10 Jun
3-4 wk
16 Jun
1 Jul
1 wk after
23 Jun
2 wk after
China aster
Callistephus chinensis
Fleece
21 Apr – 5 May
30 May
6-8 wk
16 Jun
11 Jul
1 wk after
5 Jul
4 wk after
Annual phlox
Phlox drummondii
21 Apr – 5 May
30 Apr
6-8 wk
16 Jun
1 wk after
23 Jul
6 wk after
Hollyhock
Alcea rosea
15 – 29 Apr
6-8 wk
10 Jun
0 wk
23 Jun
2 wk after
Alpine delphinium
Delphinium elatum
18 Mar – 15 Apr
16 Apr
8-12 wk
10 Jun
11 Jun
0 wk
5 Jul
4 wk after
African marigold
Tagetes erecta
Fleece
21 Apr – 5 May
18 May
6-8 wk
16 Jun
29 Jun
1 wk after
Black-eyed Susan
Rudbeckia hirta
17 Apr – 1 May
7 May
6-8 wk
12 Jun
18 Jun
0 wk
23 Jul
6 wk after
Wood sage
Salvia nemorosa
1 – 15 Apr
6 Apr
8-10 wk
10 Jun
0 wk
5 Jul
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
7 Apr – 5 May
11 May
6-10 wk
16 Jun
22 Jun
1 wk after
California goldenpoppy
Eschscholzia californica
10 Jun
11 Jul
0 wk
11 Jun
1 Jul
0 wk
Painted tongue
Salpiglossis sinuata
Fleece
7 – 21 Apr
1 May
8-10 wk
16 Jun
26 Jun
1 wk after
Water forget-me-not
Myosotis scorpioides
15 – 29 Apr
30 Apr
6-8 wk
10 Jun
11 Jun
0 wk
23 Jun
2 wk after