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Planting Bulbs - Depth and Spacing Table

 

 

 

 

 

 

Best month for planting

Depth of top of bulb below surface (cms)

Distance apart (cms)

Allium

Oct

10

10

Anemone fulgens

Oct

5

5

Anemone (St Brigid)

Oct
or early spring

5

5

Anthericum

Oct

10

15

Belladonna Lily

Aug

10

15

Bluebells

Aug

10

8 to 10

Bulbocodium

Aug

10

10

Camassia

Oct

10

10

Chionodoxa

Aug

8

8

Colchicum

Aug

10

8 to 12

Crinum

Oct

15

45

Crocus (spring)

Oct

5 to 8

8 to12

Crocus (autumn)

July

5 to 8

8 to12

Daffodils

Sept/Oct

10 to 15

15

Erythronium

Aug

10

8

Fritillaria

July/August

10

6 to 9

Galtonia

Nov

10

20

Gladiolus

April

10

20

Gladiolus (colvillei type)

Nov

10

20

Hyacinths

Oct

10

7

Iris (English)

Sept

12

8 to12

Iris (Spanish)

Sept

10

10

Iris (reticulata)

Sept

10

8

Ixia

Sept

8

10

Leucojum

Aug

8

10

Lilium auratum

Oct

10 to 15

30

L candidum

Aug

12

30

L bulbiferum

Oct

10 to 15

30

L henryi

Oct

10 to 15

30

L pardalinum

Oct

10

30

L speciosum

Oct

10 to 15

30

L tigrinum

Oct

10 to 15

30

Lily of the Valley

Nov

5

10

Montbretia

March

8

6

Muscari

Oct

8

8

Ornithogalum

Oct

10

10

Scilla sibirice

Aug

8

8

Snowdrops

Aug

8 to 10

8

Stembergia

July

8

10

Tigridia

April

10

10

Trillium

Oct

8

10

Tritonia

March

10

10

Tulips (long stem)

Nov

12

20

Tulips (short stem)

Nov

10

15

Winter Aconite

Aug

8 to12

8 to12

 

Bulb Size

The majority of our bulbs will have a bulb size mentioned ( i.e. 7/8cm or 12/14cm) this size relates to the circumference of the bulb in question.