Answer: petunias

AnswerCrossword Clue
PETUNIAS

Funnel-shaped flowers

PETUNIAS

Summer annuals.

PETUNIAS

Easiest perennials to grow.

PETUNIAS
Funnel-shaped flowers.
PETUNIAS
Some of the nightshades
PETUNIASGarden ornamentals
PETUNIASFunnelform flora
PETUNIASFlowers that materialize above Magrathea, in "The Hitchhiker's Guide To The Galaxy"