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Method
Rel. frost
Last spring frost (0°C) 30 May Normal year · 20 years of data
Frost-free season 100 days 30 May – 7 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)
11 – 25 Apr
13 Jun
5-7 wk
30 May
18 Jul
0 wk
31 May
8 Jul
0 wk
Broccoli
Brassica oleracea (Italica-gruppen)
18 Apr – 2 May
25 Jun
4-6 wk
30 May
23 Jul
0 wk
31 May
13 Jul
0 wk
Chili pepper
Capsicum annuum
Greenhouse
13 Mar – 10 Apr
7 Apr
8-12 wk
5 Jun
1 wk after
Curly Kale
Brassica oleracea (Curly Kale-gruppen)
11 – 25 Apr
8 Jun
5-7 wk
30 May
13 Jul
0 wk
30 May
3 Jul
0 wk
Garden cucumber
Cucumis sativus
3 – 10 Jun
3-4 wk
1 Jul
5 wk after
Florence Fennel
Foeniculum vulgare
27 May – 3 Jun
4-5 wk
1 Jul
5 wk after
12 Jul
6 wk after
Butter bean
Phaseolus lunatus
Season too short
10 – 17 Jun
3-4 wk
8 Jul
6 wk after
Onion
Allium cepa (Cepa-gruppen)
7 Mar – 4 Apr
25 Mar
8-12 wk
30 May
0 wk
12 Jun
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
31 May
9 Jun
0 wk
31 May
0 wk
Maize
Zea mays
Fleece
8 – 15 May
22 May
3-4 wk
5 Jun
12 Jun
1 wk after
Swiss Chard
Beta vulgaris (Flavescens-gruppen)
4 – 11 May
28 Jun
3-4 wk
1 Jun
19 Jul
0 wk
12 Jun
9 Jul
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
30 May
3 Jul
0 wk
30 May
23 Jun
0 wk
Palm Kale
Brassica oleracea (Palm Kale-gruppen)
11 – 25 Apr
8 Jun
5-7 wk
30 May
13 Jul
0 wk
30 May
3 Jul
0 wk
Potato
Solanum tuberosum
28 Apr – 12 May
23 May
4-6 wk
9 Jun
20 Jun
1 wk after
9 Jun
10 Jun
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
11 – 25 Apr
18 Jun
5-7 wk
30 May
23 Jul
0 wk
31 May
13 Jul
0 wk
Pumpkin
Cucurbita pepo
3 – 10 Jun
6 Jun
3-4 wk
1 Jul
5 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
4 – 11 May
10 Jun
3-4 wk
1 Jun
1 Jul
0 wk
12 Jun
21 Jun
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
18 Apr – 2 May
20 Jun
4-6 wk
30 May
18 Jul
0 wk
Lettuce
Lactuca sativa
2 – 9 May
7 Jul
3-4 wk
30 May
28 Jul
0 wk
31 May
18 Jul
0 wk
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
18 Apr – 2 May
20 Jun
4-6 wk
30 May
18 Jul
0 wk
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
2 – 16 May
30 May
2-4 wk
30 May
13 Jun
0 wk
30 May
3 Jun
0 wk
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
31 May
9 Jun
0 wk
31 May
0 wk
Spinach
Spinacia oleracea
2 – 9 May
22 Jul
3-4 wk
30 May
12 Aug
0 wk
27 May
2 Aug
0 wk
Sweet potato
Ipomoea batatas
24 Jun – 8 Jul
4-6 wk
5 Aug
10 wk after
Garden tomato
Solanum lycopersicum
Fleece
10 – 24 Apr
1 May
6-8 wk
5 Jun
12 Jun
1 wk after
Tomatillo
Physalis ixocarpa
Common Bean
Phaseolus vulgaris
15 – 29 May
8 Jun
2-4 wk
12 Jun
22 Jun
2 wk after
12 Jul
6 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
18 Apr – 2 May
20 Jun
4-6 wk
30 May
18 Jul
0 wk
Garden pea
Pisum sativum
2 – 9 May
22 Jun
3-4 wk
30 May
13 Jul
0 wk
31 May
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
20 May – 3 Jun
4-6 wk
1 Jul
5 wk after
Lemon balm
Melissa officinalis
21 Mar – 4 Apr
18 May
8-10 wk
30 May
13 Jul
0 wk
24 Jun
3 Jul
4 wk after
Dill
Anethum graveolens
31 May
19 Jul
0 wk
Wild chives
Allium schoenoprasum
4 – 18 Apr
1 Jun
6-8 wk
30 May
13 Jul
0 wk
31 May
3 Jul
0 wk
Spearmint
Mentha spicata
7 Mar – 4 Apr
18 May
8-12 wk
30 May
13 Jul
0 wk
24 Jun
3 Jul
4 wk after
Coriander
Coriandrum sativum
30 May
8 Aug
0 wk
12 Jun
29 Jul
2 wk after
Garden sage
Salvia officinalis
23 Mar – 6 Apr
3 May
8-10 wk
1 Jun
28 Jun
0 wk
Common thyme
Thymus vulgaris
21 Mar – 4 Apr
8 May
8-10 wk
30 May
3 Jul
0 wk
Oregano
Origanum vulgare
4 – 18 Apr
22 May
6-8 wk
30 May
3 Jul
0 wk
24 Jun
4 wk after
Parsley
Petroselinum crispum
4 – 18 Apr
22 May
6-8 wk
30 May
3 Jul
0 wk
31 May
23 Jun
0 wk
Rosemary
Salvia rosmarinus
23 Feb – 23 Mar
23 Mar
10-14 wk
1 Jun
1 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
3 – 10 Jun
3-4 wk
1 Jul
5 wk after
Cornflower
Centaurea cyanus
30 May
13 Jul
0 wk
31 May
3 Jul
0 wk
Statice
Limonium sinuatum
3 – 17 Apr
23 Apr
8-10 wk
12 Jun
18 Jun
2 wk after
Sweet William
Dianthus barbatus
4 – 18 Apr
6-8 wk
30 May
0 wk
9 Jun
1 wk after
Snow-on-the-mountain
Euphorbia marginata
17 Apr – 1 May
7 May
6-8 wk
12 Jun
18 Jun
2 wk after
5 Aug
10 wk after
Pinnate dahlia
Dahlia × pinnata
15 – 29 Apr
12 May
6-8 wk
10 Jun
23 Jun
2 wk after
Pinnate dahlia (tubers)
Dahlia × pinnata
29 Apr – 27 May
26 May
4-8 wk
24 Jun
4 wk after
24 Jun
4 wk after
Foxglove
Digitalis purpurea
21 Mar – 4 Apr
8-10 wk
30 May
0 wk
12 Jun
2 wk after
Busy lizzie
Impatiens walleriana
8 Apr – 6 May
11 Jun
8-12 wk
1 Jul
6 Aug
5 wk after
Creeping zinnia
Sanvitalia procumbens
17 Apr – 1 May
17 May
6-8 wk
12 Jun
28 Jun
2 wk after
Hyacinth bean
Dolichos lablab
Season too short
1 – 15 May
4-6 wk
12 Jun
2 wk after
Chinese lantern
Physalis alkekengi
23 Mar – 6 Apr
14 Apr
8-10 wk
1 Jun
9 Jun
0 wk
Love in a mist
Nigella damascena
30 May
28 Jun
0 wk
31 May
18 Jun
0 wk
Strawflower
Xerochrysum bracteatum
17 Apr – 1 May
27 Apr
6-8 wk
12 Jun
2 wk after
5 Aug
10 wk after
Purple-top vervain
Verbena bonariensis
9 Mar – 6 Apr
14 Apr
8-12 wk
1 Jun
9 Jun
0 wk
Cardoon
Cynara cardunculus
Fleece
13 Mar – 10 Apr
19 Mar
8-12 wk
5 Jun
1 wk after
Regal-foxtail
Ptilotus nobilis
Fleece
20 Mar – 17 Apr
16 Apr
8-12 wk
12 Jun
2 wk after
Globe amaranth
Gomphrena globosa
Fleece
17 Apr – 1 May
30 Apr
6-8 wk
12 Jun
2 wk after
Corn poppy
Papaver rhoeas
30 May
13 Jul
0 wk
31 May
3 Jul
0 wk
Snapdragon
Antirrhinum majus
7 Mar – 4 Apr
8 May
8-12 wk
30 May
3 Jul
0 wk
9 Jun
23 Jun
1 wk after
Flossflower
Ageratum houstonianum
22 Apr – 6 May
3 May
8-10 wk
1 Jul
5 wk after
Sweet pea
Lathyrus odoratus
4 – 25 Apr
29 May
5-8 wk
30 May
3 Jul
0 wk
Stock
Matthiola incana
4 – 18 Apr
1 Jun
6-8 wk
30 May
13 Jul
0 wk
12 Jun
3 Jul
2 wk after
Wormwood
Artemisia absinthium
4 – 18 Apr
2 May
6-8 wk
30 May
13 Jun
0 wk
12 Jun
2 wk after
Mexican sunflower
Tithonia rotundifolia
Fleece
1 – 15 May
9 May
4-6 wk
12 Jun
2 wk after
Garden pansy
Viola × wittrockiana
21 Mar – 4 Apr
18 May
8-10 wk
30 May
13 Jul
0 wk
9 Jun
3 Jul
1 wk after
Petunia
Petunia
20 Mar – 17 Apr
23 Apr
8-12 wk
12 Jun
18 Jun
2 wk after
Sweet Scabious
Scabiosa atropurpurea
6 – 20 Apr
28 Apr
6-8 wk
1 Jun
9 Jun
0 wk
12 Jul
6 wk after
Common zinnia
Zinnia elegans
1 – 15 May
24 May
4-6 wk
12 Jun
21 Jun
2 wk after
Common morning glory
Ipomoea purpurea
27 May – 10 Jun
3-5 wk
1 Jul
5 wk after
Garden cosmos
Cosmos bipinnatus
1 – 15 May
26 May
4-6 wk
12 Jun
23 Jun
2 wk after
12 Jul
6 wk after
Scarlet milkweed
Asclepias curassavica
Fleece
8 Apr – 6 May
16 May
8-12 wk
1 Jul
11 Jul
5 wk after
Bee balm
Monarda didyma
7 Mar – 4 Apr
18 Apr
8-12 wk
30 May
13 Jun
0 wk
24 Jun
4 wk after
Yarrow
Achillea millefolium
4 – 18 Apr
6-8 wk
30 May
0 wk
12 Jun
2 wk after
Safflower
Carthamus tinctorius
30 May
13 Jun
0 wk
31 May
3 Jun
0 wk
Iceland poppy
Papaver nudicaule
Season too short
4 – 18 Apr
22 May
6-8 wk
30 May
3 Jul
0 wk
14 May
23 Jun
2 wk before
Bishop's flower
Ammi majus
18 Apr – 2 May
5 Jun
4-6 wk
30 May
3 Jul
0 wk
12 Jun
23 Jun
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
13 – 27 Mar
4 Apr
10-12 wk
5 Jun
13 Jun
1 wk after
Sunflower
Helianthus annuus
15 – 22 May
31 May
3-4 wk
12 Jun
21 Jun
2 wk after
24 Jun
4 wk after
China aster
Callistephus chinensis
17 Apr – 1 May
20 May
6-8 wk
12 Jun
1 Jul
2 wk after
12 Jul
6 wk after
Annual phlox
Phlox drummondii
10 – 24 Apr
17 May
6-8 wk
5 Jun
28 Jun
1 wk after
12 Jul
6 wk after
Hollyhock
Alcea rosea
4 – 18 Apr
6-8 wk
30 May
0 wk
12 Jun
2 wk after
Alpine delphinium
Delphinium elatum
7 Mar – 4 Apr
18 Apr
8-12 wk
30 May
13 Jun
0 wk
24 Jun
4 wk after
African marigold
Tagetes erecta
17 Apr – 1 May
17 May
6-8 wk
12 Jun
28 Jun
2 wk after
Black-eyed Susan
Rudbeckia hirta
6 – 20 Apr
10 May
6-8 wk
1 Jun
21 Jun
0 wk
12 Jul
6 wk after
Wood sage
Salvia nemorosa
21 Mar – 4 Apr
8 Apr
8-10 wk
30 May
3 Jun
0 wk
24 Jun
4 wk after
Black-eyed susan vine
Thunbergia alata
22 Apr – 20 May
1 May
6-10 wk
1 Jul
5 wk after
California goldenpoppy
Eschscholzia californica
30 May
13 Jul
0 wk
31 May
3 Jul
0 wk
Painted tongue
Salpiglossis sinuata
3 – 17 Apr
16 Apr
8-10 wk
12 Jun
2 wk after
Water forget-me-not
Myosotis scorpioides
4 – 18 Apr
2 May
6-8 wk
30 May
13 Jun
0 wk
12 Jun
2 wk after