HELIANTHUS x LAETIFLORUS 'Lemon Queen' 


Common Names:
Perennial Sunflower 'Lemon Queen'
Family: Asteraceae
Hybrid with parents from central North America.
Sylvie's comments
This beautiful perennial sunflower is easily recognizable by the lemon yellow flowers, an unusual color in sunflowers. It comes from
two species native to central North America, (
Helianthus pauciflorus ssp.
Subrhomboideus, the stiff sunflower and
Helianthus tuberosus, the Jerusalem artichoke).
that cross spontaneously and are naturalized in Quebec. The Jerusalem artichoke is said to have been implanted by the natives a long time ago,
as a food resource. It made its way to Europe where it was very useful in saving people from starvation during the Second World War.
This offspring of the two species, named 'Lemon Quen', is an American selection noted for the colour of its flowers, but also for the absence of the tracer roots
that are usually "equipped" with large perennial sunflowers, including its parents. Instead, it forms a clump that grows over the years and can be divided if necessary.
Instead, it forms a clump that grows over the years and is divided as needed.
It has all the makings of a star plant. In more southerly regions, it can grow to 2.4 m, but in our regions, it is more like 1.5 to 1.8 m.
It may be a little weak in mid-shade, but it is good in the sun, except in high winds. In my gardens, flowering starts towards the end of August
or early September.It is a splendour that attracts many foragers of all kinds who spot it from afar.
Leafcutter bees, halictids, bumble bees, butterflies, and many others are present.
It is probably, like its parents and other sunflowers, a host plant for Silvery Checkerspot (
Chlosyne nycteis)
and the Gorgone Checkerspot (
Chlosyne gorgone), as well as for the very polyphagous Painted Lady (
Vanessa cardui) and probably for some moths.
It suits very well for the formation of hedges or screens as it is bushy up to the head and reaches a good height early in the season.
The disadvantage of perennial hedges, unlike shrub hedges, is that they start from the ground each year and reach their height within a few days.
It is probably, like its parents and other sunflowers, a host plant for Silver Damask (
Chlosyne nycteis).
and the Damier gorgone (Chlosyne gorgone), as well as for the very polyphagous Belle-Dame butterfly (
Vanessa cardui) and probably for some moths.
It is also suitable for the formation of hedges or screens as it is bushy up to the head and reaches a good height early in the season.
The disadvantage of perennial hedges, unlike shrub hedges, is that they start from the ground and reach their height during the summer.
The advantage is that growth is faster than in shrubs. My hedge of
'Lemon Queen' sunflowers was fully functional the year after planting, from plants grown in 3 litre pots.
It is known to be sterile, but I regularly have seedlings, which although not numerous, are not rare.
Seed production is too low to be a resource for the birds.
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