The totems / Leiden

BeeTotem · Stationsbuurt, Leiden

Ivy bee

Colletes hederae

She only flies in autumn and lives almost entirely on ivy. Her totem stands near Leiden Centraal station, with a bee hotel for ground-nesting bees.

Ivy bee (Colletes hederae)

Flight time

Aug – Nov

Nests in

In the ground

Totem

LeidenLeiden

Her plants

19 specieswithin 100 to 300 metres

Meet her

The ivy bee in brief.

Appearance

The ivy bee is a medium-sized solitary bee with a warm, reddish thorax and striking orange-yellow bands on the abdomen, which make her more colourful than many of her relatives. Females are slightly larger and hairier, and are often mistaken for small honey bees.

Special features

This bee has only one generation a year. Males appear at the end of August, followed by females in September. Both stay active into November. They prefer sandy or loamy soil on sunny banks, lawns or even cliffs, and often form huge nesting colonies with thousands of separate nest tunnels.

Did you know?

The ivy bee is highly specialised and lives almost entirely on ivy (Hedera helix) for pollen and nectar, timed exactly to the late flowering of ivy in autumn. When ivy is scarce, she sometimes visits other composite flowers. In the Netherlands the species was first recorded in Maastricht in 1997. She is also parasitised by the blister beetle Stenoria analis, whose larvae mimic female pheromones to lure males: a remarkable bit of trickery in nature.

The totem

BeeTotem & BeeHotel for the ivy bee

The BeeTotem for the ivy bee is a luxury restaurant full of power food. It works on circular principles: in the core of the BeeTotem, worms make nourishing 'cocktails' from kitchen scraps brought by hosts. Through small tunnels the worms crawl into the soil and enrich it with compost.

This can have two effects. The pollen and nectar for the larvae become more nourishing, so the young bees grow stronger and more resilient, which may lead to a healthier generation the following year. At the same time the plants send out stronger signals, so they attract pollinators from further away.

Because ivy bees nest in the ground, a BeeHotel for ground-nesting species has been placed close by. Together, BeeTotem and BeeHotel form a complete habitat: food and shelter side by side.

By planting important ivy species on a large scale (Hedera helix arborescens and Hedera colchica), together with other plants that flower at different times and give pollen and nectar to ivy bee males, a tailor-made habitat grows in the neighbourhood. There is still a lot to discover, though.

The totem and bee hotel of the ivy beeThe totem and bee hotel of the ivy beeThe totem and bee hotel of the ivy beeThe totem and bee hotel of the ivy bee

Where to find her

Marislaan, corner of Aloëlaan, Maredijkbuurt, Leiden

52.16663° N, 4.48705° O

Open in the map →

What she eats

Her plants, from spring to autumn.

Plant one of these within 300 metres of the totem, and your balcony or garden becomes part of her habitat. The calendar shows when there is something to eat.

JFMAMJJASONDCommon ivyShrub ivyPersian ivyYellow odontitesHeatherSavoy hawkweedCanadian goldenrodAutumn crocusChinese sumacAutumn hawkbitCat's-earSea hollyWild marjoramPerennial wall-rocketField eryngoNew England asterWhite melilotWhite cloverBrown knapweedSomething in bloom
Common ivy
Common ivyHedera helix
SunShadeSeptember–November
More about this plant
Setting
Sun–shade
Size
Up to 25 m
Flowering
September–November
Lifespan
100+ years
Soil
humus-rich, moist, free-draining soil
Shrub ivy
Shrub ivyHedera helix arborescens
SunShadeSeptember–November
More about this plant
Setting
Sun–shade
Size
Up to 2 m
Flowering
September–November
Lifespan
Perennial
Soil
Humus-rich, moist, free-draining soil
Persian ivy
Persian ivyHedera colchica
SunShadeJuly–October
More about this plant
Setting
Sun–shade
Size
Up to 4 m
Flowering
July–October
Lifespan
Perennial
Soil
pH neutral to alkaline, fertile, well drained
Yellow odontites
Yellow odontitesOdontites luteus
SunJuly–October
More about this plant
Setting
Sunny, grassland
Size
20–50 cm
Flowering
July–October
Lifespan
Annual
Soil
Dry, chalky, poor
Heather
HeatherCalluna vulgaris
SunJuly–September
More about this plant
Setting
Sunny
Size
20–50 cm
Flowering
July–September
Lifespan
Perennial
Soil
Acid, poor, sandy
Savoy hawkweed
Savoy hawkweedHieracium sabaudum
SunPartial shadeAugust – October
More about this plant
Setting
Sun to partial shade
Size
30–100 cm
Flowering
August – October
Lifespan
Perennial
Soil
moderately dry to moist, moderately nutrient-rich
Canadian goldenrod
Canadian goldenrodSolidago canadensis
SunAugust–October
More about this plant
Setting
Sunny
Size
1–2 m
Flowering
August–October
Lifespan
Perennial
Soil
Nutrient-rich, moist to dry
Autumn crocus
Autumn crocusColchicum autumnale
SunPartial shadeSeptember–October
More about this plant
Setting
Sun to partial shade
Size
10–30 cm
Flowering
September–October
Lifespan
Perennial
Soil
Moist, chalky, grassland
Chinese sumac
Chinese sumacRhus chinensis
SunJuly–August
More about this plant
Setting
Sun
Size
Shrub/tree, 5–10 m
Flowering
July–August
Lifespan
Perennial, shrub/tree
Soil
Well drained, moderately nutrient-rich
Autumn hawkbit
Autumn hawkbitScorzoneroides autumnalis
SunPartial shadeMay–October
More about this plant
Setting
Sun to partial shade
Size
10–50 cm
Flowering
May–October
Lifespan
Perennial
Soil
Moderately dry to moist, poor
Cat's-ear
Cat's-earHypochaeris radicata
SunJune–October
More about this plant
Setting
Sun
Size
10–60 cm
Flowering
June–October
Lifespan
Perennial
Soil
Dry to moist, moderately nutrient-rich
Sea holly
Sea hollyEryngium maritimum
SunJune–August
More about this plant
Setting
Sunny, coastal dunes
Size
20–60 cm
Flowering
June–August
Lifespan
Perennial
Soil
Sandy, chalky, free-draining
Wild marjoram
Wild marjoramOriganum vulgare
SunJuly–September
More about this plant
Setting
Sunny, edges
Size
30–80 cm
Flowering
July–September
Lifespan
Perennial
Soil
Dry, chalky, poor to moderate
Perennial wall-rocket
Perennial wall-rocketDiplotaxis tenuifolia
SunMay–October
More about this plant
Setting
Sunny
Size
30–80 cm
Flowering
May–October
Lifespan
Perennial
Soil
Dry, stony, chalky
Field eryngo
Field eryngoEryngium campestre
SunJune–September
More about this plant
Setting
Sunny, grassland
Size
30–80 cm
Flowering
June–September
Lifespan
Perennial
Soil
Dry, chalky, sandy
New England aster
New England asterSymphyotrichum novae-angliae
SunAugust–October
More about this plant
Setting
Sun
Size
100–150 cm
Flowering
August–October
Lifespan
Perennial
Soil
Nutrient-rich, moist
White melilot
White melilotMelilotus albus
SunJune–September
More about this plant
Setting
Sunny
Size
50–150 cm
Flowering
June–September
Lifespan
Biennial, long-lived
Soil
Rather dry, nitrogen-rich
White clover
White cloverTrifolium repens
SunPartial shadeMay–October
More about this plant
Setting
Sun–partial shade
Size
5–20 cm
Flowering
May–October
Lifespan
Perennial
Soil
Moist, nutrient-rich, lawns
Brown knapweed
Brown knapweedCentaurea jacea
SunPartial shadeJune–September
More about this plant
Setting
Sun–partial shade
Size
30–80 cm
Flowering
June–September
Lifespan
Perennial
Soil
Moist, moderately nutrient-rich

Buying plants

Organic, and native if you can.

We now know that we should feed pollinators with non-toxic, organic plants. As a result, more and more nurseries grow organically. We share the vision of growers who work with local and native genotypes to support biodiversity in their eco-zone and to contribute to nature conservation worldwide. Please bear in mind that plant availability depends on the season and the supplier. Your best chance of success is to buy before or at the start of each flowering season (see above). Sowing seeds is also an option. There are several places where you can order organic plants and seeds, which are then delivered by post. Some suppliers are listed below.

Karmagotchi

How the totem is doing.

The Karmagotchi is based on the idea of the Tamagotchi. It is a tool that lets hosts keep track, together, of how the plants and worms in the BeeTotem are doing. A script linked to the local weather station runs all the time, collects temperature and rainfall data and sets the level from 100 to 0%. Hosts have access to this interface. After adding water or kitchen scraps, they can let all the other hosts know by simply tapping the water or food icon.

Water72%

Food for the worms38%

Sample values. Hosts see the real levels here and report with one tap that they have given water or kitchen scraps.

Join in

Help look after the ivy bee.

Host

Become a host of the totem

Hosts feed the worms kitchen scraps, keep the plants watered and tell the neighbours about it. Fill in the covenant and email it to info@refubees.org.

Read the covenant

Adopt

Plant her flowers at home

Find out which bee belongs to your neighbourhood and which flowers she needs. One plant on your balcony already helps.

Adopt a neighbourhood bee in South Holland

Spotting

Seen her? Take a photo

The paving stone next to the totem has a QR code that leads to this page. Seen the bee? Take a photo and send it in: that way we can tell whether the totem works.

Send a photo