Create your calendar
Method
Rel. frost
Last spring frost (0°C) 2 May Frost 9 of 10 years · 20 years of data
Frost-free season 137 days 2 May – 16 Sep
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

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