Tall annual with large, daisy-like flower heads that track the sun and
pour energy into seeds for birds, people and soil life.
In Nature’s Acre, sunflowers are morale boosters as much as plants:
vertical markers of the season that draw the eye, feed insects and birds,
and give a sense of scale to young gardeners.
A sunflower head full of seed, ringed with bright yellow petals, standing
above the rest of the border.
Key facts
Habit & life cycle
Fast-growing annual, sown in spring and finishing in late summer or autumn
once flowers and seeds have matured.
Size
Height varies by variety, from around 60 cm to well over 2 m for
tall forms. Single or branching types.
Leaves
Large, rough, heart-shaped leaves on sturdy, hairy stems. Foliage gives
strong structure even before flowering.
Flowers
Large daisy-like heads with a central disc of many small florets surrounded
by showy yellow (or sometimes orange/red) ray florets.
Seeds
Oil-rich seeds develop in the centre of the flower. These can be harvested
for people or left for birds and small mammals to feed on.
Habitat & soil
Prefers full sun and reasonably fertile, well-drained soil. Appreciates
shelter from strong winds, especially for taller varieties.
Wildlife
Flowers attract bees and other pollinators; mature seedheads are valuable
food for finches and other seed-eating birds.
Sunflowers in a wildlife-friendly garden
Sunflowers are often grown for spectacle, but in a wildlife garden they’re
also scaffolding: for insects, birds and for the stories you tell about a
growing season.
In a Nature’s Acre-style garden, sunflowers can mark the ends of beds,
stand at the back of borders or line paths as a living, seasonal fence.
They work well in school and community gardens because they make time visible:
from small seedlings to towering stems to bare winter skeletons still
holding a few last seeds.
Wildlife & people value
The central disc is made of many tiny flowers, each a pollen and nectar
source for bees and hoverflies.
Seedheads feed finches and other birds if left standing into autumn and
early winter.
Tall stems and broad leaves provide perching, shade and small shelter
pockets in otherwise open beds.
For people, they’re an easy way to involve children: measuring height,
counting flowers, saving seed.
One row of sunflowers can act as a seasonal wildlife tower block on a very
ordinary patch of soil.
How to grow and manage
Sow indoors in pots in spring or direct-sow after frost risk has passed.
Plant out in full sun, spacing plants to allow air to move between them
as they grow.
Water deeply during dry spells, especially while plants are establishing
and when buds are forming.
Stake tall varieties in exposed sites to reduce wind damage.
After flowering, decide which heads to cut for seed and which to leave
standing for birds.
In a wildlife garden, you don’t need to clear the stems as soon as the
petals drop; leaving them through autumn extends their value.
Uses & cautions:
Sunflower seeds are edible and widely used for food and oil, but only harvest
from plants grown without chemical treatments if you plan to eat them. Heavy
flower heads can catch the wind; in very exposed sites they may need staking
or be better grown in shorter varieties.
Connections within Nature’s Acre
In the book, sunflowers are part of the visible calendar of the garden:
they share soil with veg crops and wildflowers, but their height and faces
make them the first thing many visitors notice.
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