Heike Odermatt / English Bluebell (Hyacinthoides nonscripta) carpet in the European Beech (Fagus sylvatica)forest, Halle, Brussels, Belgium

Jack Dykinga / Desert lilies (Hesperocallis undulata) flowering in spring on dunes at dawn. Mohawk Dunes, Barry M. Goldwater Range, Sonoran Desert, Arizona, USA.

Jack Dykinga / Joshua Trees (Yucca brevifolia) of the Mojave Desert at dawn encircled with flowering lupines. (Lupinus sp,) Mohave County, Castaneda Wash, Arizona, USA.

John Shaw / Abandoned house in middle of a wheat field. Palouse farming area, south eastern Washington, USA, August.

Jack Dykinga / Yellow California goldfields (Lasthenia californica) and orange California poppies (Eschscholzia californica) carpet the hillside, with flowering Joshua Tree (Yucca brevifolia) in the forground. Antel...

Jack Dykinga / Yellow California goldfields (Lasthenia californica) and orange California Poppies (Eschscholzia californica), with a flowering Joshua tree (Yucca brevifolia). Antelope Butte, near the Antelope Valley...

Jack Dykinga / Yellow California goldfields (Lasthenia californica) and orange California Poppies (Eschscholzia californica), with a flowering Joshua tree (Yucca brevifolia). Antelope Butte, near the Antelope Valley...

Paul Hobson / Badger (Meles meles) amongst Bluebells (Hyacinthoides non-scripta). Scotland, UK. May.

Edwin Giesbers / Star of Bethlehem (Ornithogalum narbonense) flower, insect on petal. Cyprus. April.

Ernie Janes / Bluebells (Hyacinthoides non-scripta) and Beech (Fagus sylvatica) leaves, England, UK, May.

Guy Edwardes / Bluebell (Hyacinthoides non-scripta) covered slope with Colmer's Hill in background, Eype Down, Bridport, Dorset, England, UK. May 2014.

Guy Edwardes / Bluebells (Hyacinthoides non-scripta) on Eype Down with Colmer's Hill in background, Bridport, Dorset, England, UK. May 2014.

Guy Edwardes / Bluebells (Hyacinthoides non-scripta) and Gorse (Ulex europaeus) on Corfe Common, Corfe Castle in background, Dorset, England, UK. May 2017.

Guy Edwardes / Bluebells (Hyacinthoides non-scripta) at Corfe Common, Corfe Castle in background, Isle of Purbeck, Dorset, England, UK. May 2014.

Ross Hoddinott / Bluebell (Hyacinthoides non-scripta) growing, Marsland Mouth, Devon Wildlife Trust, Devon, UK. April 2017.

Ross Hoddinott / Two small pearl-bordered fritillary butterflies (Boloria selene) resting on bluebell, Marsland mouth, North Devon, UK. May 2017.

Ross Hoddinott / Small pearl-bordered fritillary butterfly (Boloria selene), Marsland mouth, Cornwall, UK. JUne 2016.

Jack Dykinga / Agave (Agave utahensis) close up of spines with Pinyon pine cone (Pinus edulis) wedged amongst them. Grand Canyon-Parashant National Monument, Arizona, USA

Jack Dykinga / Waterfall with intense run off due to Hurricane Newton, with Agave. Santa Catalina Mountains, Coronado National Forest, Arizona, USA, September

Floris van Breugel / Desert agave (Agave deserti) has skewered a ball of spines shed by neighboring Cholla cactus (Cylindropuntia bigelovii) Anza-Borrego State Park, California, USA March

Floris van Breugel / Close up of (Agave) plant leaves, California, USA November

Klein & Hubert / Wild donkey / Burro jenny near Joshua trees (Yucca brevifolia), Mojave Desert, Nevada, USA.

Cyril Ruoso / Woman with baby looking at Sisal (Agave sisalana) fibres drying for rope making, Berenty Reserve, Madagascar.

Alex Hyde / Orange Tip Butterfly (Anthocharis cardamines) male resting on Bluebell (Endymion / Hyacinthoides nonscriptus). Peak DIstrict National Park, Derbyshire, UK. April.

David Tipling / Fern growing among Bluebells (Hyacinthoides non-scripta) Foxley Wood, Norfolk, UK, April.

Jack Dykinga / Yuccas (Yucca elata) silhouetted against the moon and morning light, White Sands National Park, New Mexico. January.

Enrique Lopez-Tapia / Close up of Sisal (Agave sisalana) Berenty, south Madagascar.

Philippe Clement / Woodpiles amongst flowering Bluebells (Hyacinthoides non-scripta) in beech woodland, Hallerbos / Halle forest, Belgium, April.

Jack Dykinga / White Sands National Park with its white gypsum dunes dotted with Yuccas (Yucca elata) creating patterns amid the dunes, at sunset. White Sands, New Mexico. January 2013

Jack Dykinga / White Sands National Park with its white gypsum dunes dotted with Yuccas (Yucca elata) creating patterns amid the dunes. White Sands, New Mexico, USA. January 2013

Inaki Relanzon,Inaki Relanzon / Joshua tree (Yucca brevifolia) at night, Joshua Tree National Park, California, USA, June 2012.

Ross Hoddinott / RF- Beech (Fagus) and Bluebell (Hyacinthoides non-scripta) woodland at Lanhydrock, Cornwall. UK. (This image may be licensed either as rights managed or royalty free.)

Ross Hoddinott / RF- Bluebell (Endymion / Hyacinthoides non-scripta), Cornwall. UK. (This image may be licensed either as rights managed or royalty free.)

Peter Cairns / RF- Bluebells (Hyacinthoides non-scripta) flowering in beech wood. Perthshire, Scotland, UK. (This image may be licensed either as rights managed or royalty free.)

Heike Odermatt / European Beech (Fagus sylvatica) forest with English Bluebells (Hyacinthoides nonscripta), Halle, Brussels, Belgium

Heike Odermatt / English Bluebell (Hyacinthoides nonscripta) carpet in the European Beech (Fagus sylvatica) forest, Halle, Brussels, Belgium

Silvia Reiche / English Bluebell (Hyacinthoides nonscripta) flowering in forest, Halle, Brussels, Belgium

Linda Pitkin / Watercolour painting of Grape hyacinth (Muscari). Botanical illustration by Linda Pitkin.

Ashley Cooper / Footpath through Bluebells (Hyacinthoides non-scripta) covering a woodland floor, near Ilkley, Yorkshire, UK. May.

Paul Harcourt Davies / Branched St Benard's lily (Anthericum ramosum) in flower, Sibillini, Umbria, Italy. July.

Paul Harcourt Davies / St Bruno's lily (Anthericum liliastrum) in flower, Umbria, italy. May.

Paul Harcourt Davies / Spineless butcher's-broom (Ruscus hypoglossum) in flower, Umbria, Italy. May.

Paul Harcourt Davies / Butcher's broom (Ruscus aculeatus) fruit, Umbria, Italy. December.

Paul Harcourt Davies / Alpine turf with Alpine forget-me-nots (Myosotis alpina), Basil thyme (Acinos arvensis) and a few Dark grape hyacinths (Muscari commutatum), Sibillini, Umbria, Italy. May.

Guy Edwardes / Deciduous woodland in spring with Bluebells (Hyacinthoides non-scripta) and Ramsons (Allium ursinum), near Blandford, Dorset, UK, May.