Bulb & tuber plants · Care, Position & Winter

Profile

Plant group

Storage-organ plants · bulbs and tubers

Growth & habit

Underground storage organs produce leaves and flower stems; above-ground form varies by species.

Foliage

Foliage replenishes reserves for the next growth cycle and dies back seasonally in many species.

Family

Several plant families

Origin

Temperate to tropical regions depending on species

Height

About 10–150 cm depending on species

Bloom

Spring to autumn by species; forced plants differ

Toxicity

Many ornamental bulbs are poisonous; never confuse with edible onions

Care calendar

Leaf emergence

Jan
FebIndicative season
MarIndicative season
AprIndicative season
MayIndicative season
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Fresh growth with suitable light and temperature; months are a guide for central Europe.

Flowering / flower development

Jan
Feb
MarIndicative season
AprIndicative season
MayIndicative season
JunIndicative season
JulIndicative season
AugIndicative season
SepIndicative season
Oct
Nov
Dec

Spring to autumn by species; forced plants differ.

Leaf fall

Jan
Feb
Mar
Apr
MayIndicative season
JunIndicative season
JulIndicative season
Aug
SepIndicative season
OctIndicative season
Nov
Dec

Foliage replenishes reserves for the next growth cycle and dies back seasonally in many species.

Pruning & growth habit

Jan
Feb
Mar
AprIndicative season
MayIndicative season
JunIndicative season
JulIndicative season
AugIndicative season
SepIndicative season
Oct
Nov
Dec

Remove spent flower stems when appropriate, retaining green leaves until they yellow.

Guidance for Germany and Central Europe. Position, weather, species and cultivar shift these windows; indoor and container plants also depend on their winter conditions.

Your seasonal care plan

Check water needs

Months: Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec

Provide appropriate moisture during growth and drier conditions during dormancy where the species requires it.
Feed during growth

Months: Apr · May · Jun · Jul · Aug · Sep

For the linked concentrate, use 5 ml per 2 l water every 2–3 weeks during active growth. Account for existing compost nutrients and previous feeding.
View product dosage and application →
Renew root space

Months: Mar · Apr · May

Do not plant all bulbs and tubers at the same depth; consider their shoots and necks.
View product dosage and application →
Plan winter care

Months: Jan · Feb · Oct · Nov · Dec

Store tender summer tubers dry and frost-free; leave hardy bulbs outdoors only in suitable soil conditions.

Highlighted months are guidance, not fixed dates. Observe the plant, root ball and weather; water, feed and repot according to actual need.

Seasonal care intensity

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Seasonal guidance for Germany. Needs depend on location, weather and species. Check moisture in winter too; these markers are not a feeding schedule.

Peak care Active Reduced care

Care tips

Spring bulbs, summer tubers and forced indoor plants follow different seasonal rhythms.
Match light and planting depth to the individual species.
Provide appropriate moisture during growth and drier conditions during dormancy where the species requires it.
Do not plant all bulbs and tubers at the same depth; consider their shoots and necks.
Remove spent flower stems when appropriate, retaining green leaves until they yellow.
Store tender summer tubers dry and frost-free; leave hardy bulbs outdoors only in suitable soil conditions.

Fruit & harvest

Fruit and seed formation

Bulbous and tuberous plants form capsules or other seed-bearing fruits, depending on species. An underground bulb or tuber is a storage organ, not a fruit; similar shapes can cause dangerous confusion.

Harvest and use

There is no general food harvest from ornamental bulbs. Do not confuse daffodil or tulip bulbs with onions. Retain leaves after flowering to replenish reserves; remove seed heads if propagation is not intended.

Plant knowledge at a glance

Position, benefits & character

Position & soil

Match light and planting depth to the individual species. Provide appropriate moisture during growth and drier conditions during dormancy where the species requires it. Store tender summer tubers dry and frost-free; leave hardy bulbs outdoors only in suitable soil conditions.

Distinctive features

A bulb has storage leaves; a tuber is a different swollen organ. Their care is not automatically interchangeable.

Benefits

Combine species to create a sequence of flowers from spring to autumn.

Partners & symbioses

Pollination and vegetative multiplication are different processes; insects cannot access every double flower.

Pruning & growth habit

Underground storage organs produce leaves and flower stems; above-ground form varies by species.

1. Inspect the plant
Spring bulbs, summer tubers and forced indoor plants follow different seasonal rhythms.
2. Remove selectively
Remove spent flower stems when appropriate, retaining green leaves until they yellow.
3. Preserve form and growth
Avoid damaging the crown or new shoots. Keep tools clean and retain the species’ natural form.

Nursery forms

This overview explains nursery supply forms. It does not indicate current availability in the GREEN24 shop.

Bare-root

Ask a specialist nursery

Choose bare-root stock only for suitable species and seasons; never dry out sensitive pot plants.

Root-balled

Ask a specialist nursery

Balled stock is not the usual standard for this group. Check rooting and root-ball security.

Container-grown

Common form

Rooted potted stock is usual. Check pot size, live roots and suitable moisture.

Young plant

Common form

Young plants need root space appropriate to their size and gradual acclimation.