Gaura lindheimeri Seeds | Lindheimer’s Beeblossom
LATIN NAME: Gaura lindheimeri
COMMON NAME: Lindheimer’s Beeblossom
Plant Profile
Plants rise from a woody crown with a deep taproot, sending up slender stems that arch as they lengthen and rarely need staking in an open site. Leaves are narrow and lance-shaped, sessile, sometimes with a few distant teeth and a thin covering of hairs that gives the foliage a grey cast. The spike is a raceme, and the buds at its tip are held in an overlapping row, which is why the flowering front looks so clean as it moves upward.
Molecular work on the family showed that the old genus Gaura sits inside Oenothera, so the beeblossoms were transferred and this species became Oenothera lindheimeri. The change is not merely administrative: the plant now sits beside the evening primroses, with which it shares pollen structure and seed anatomy. Both names remain in use, but a seed list printing only the new combination is the more accurate one.
The species was described from material collected in Texas by Ferdinand Lindheimer, the German botanist who spent decades documenting the flora around New Braunfels and is remembered as the father of Texas botany. Its wild home is deep, sandy prairie that bakes dry in summer and drains instantly in winter, which explains both its drought tolerance and its dislike of wet ground in cultivation.
The long tube restricts nectar to visitors with matching mouthparts, which in Texas means long-tongued bees and day-flying sphinx moths; in gardens the flowers also draw skipper butterflies and small solitary bees. Seed set is poor in isolated plants, a strong hint of a self-incompatibility system, so two genetically different plants give far more fruit than one.
Where a typical evening primrose sheds winged seed from a splitting capsule, this species produces a hard ribbed body that behaves like a nutlet and drops whole. The change in fruit architecture once helped separate the beeblossoms from their relatives, and it also determines handling: the hard wall must be rubbed or soaked before sowing.
Science & Biotechnology
The family is a recognised source of seed oils rich in gamma-linolenic acid, the fatty acid behind pharmaceutical evening primrose oil, and surveys of Onagraceae seed have repeatedly flagged the group as a reservoir of unusual polyunsaturated fatty acids. Leaf and flower tissue carries kaempferol and quercetin glycosides together with ellagitannins, and the pink flush of ageing petals comes from anthocyanins laid over a pale base.
Commercial cultivars set little seed and do not come true, so growers depend on cuttings and shoot culture. Nodal segments of selected stock multiply readily on a medium with benzyladenine, and rooting improves with an auxin dip; micropropagation bulks up compact and pink-flowered selections that would otherwise be slow to increase.
Breeding has moved in two directions: one line reduces stem length for containers, the other deepens petal colour, and both rest on forms such as ‘Siskiyou Pink’, ‘Whirling Butterflies’ and the variegated ‘Corrie’s Gold’. Compact selections flower on shorter spikes and branch more freely, which changes planting spacing.
Uses & Benefits
Each flower has four petals, eight stamens and a floral tube several times the length of the petals, with the stigma held beyond the anthers. Unlike the evening primroses that open at dusk, this species opens in the morning and holds its flowers through the day, and the pollen carries the viscin threads unique to the family — microscopic elastic strands that tether grains together so a visitor picks up a whole clump. White petals fade to pink once a flower has been worked by a pollinator, a signal that saves insects a wasted visit.
Growing from Seed
In the border the plant is used for movement rather than mass. Set it among grasses and achillea at the middle or back of a dry bed, and the wiry stems will thread through the planting without blocking it. Cut when the lowest flowers on a spike have just opened, it lasts well in water, and the pink fading continues in the vase. It also suits gravel gardens and prairie-style schemes where irrigation is minimal, and the open flowers are a constant source of nectar for late-season bees.
Mix two parts loam-based compost, two parts coarse sand or grit and one part leafmould, and sow into deep modules or a gritty frame bed, because the taproot resents disturbance. Press the seed onto the surface and cover it with a pinch of vermiculite, no more — a heavy cap of compost is the commonest reason a sowing fails. Space plants about forty centimetres apart, and transplant when they carry four to six true leaves, or when the rosettes are roughly ten centimetres across. Water deeply but infrequently once established. Pinch the growing tips when stems are about fifteen centimetres long to force branching, and give a light potassium-rich feed in midsummer rather than nitrogen, which produces soft stems that flop. In late autumn cut the stems back to about ten centimetres and leave the crown exposed; overwintering succeeds where drainage is sharp, and the plant usually rots in wet winter clay. Aphids and whitefly build up on plants under glass, and grey mould follows damaged tissue, so ventilate frames and remove faded stems.
Our Take
Plant this where water runs away and let it dry out between soakings, and it will out-flower almost anything else in the bed. It reads best next to the tall yellow spikes of the common evening primrose, whose evening opening gives the pairing a second act, and I like it in front of rosebay willowherb where the pale wands are lit from behind. On damp ground, plant the great hairy willowherb instead and keep the beeblossom for the driest corner you own.
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