An unusually wet and chilly spring was great for rhododendrons, including these decades-old beauties in Wendy Serkin’s garden. Their annual bloom not only lasted longer than usual but produced a jaw-dropping display of brilliant colors. Ms. Serkin was pleased to show visitors around when they were at their peak.

Saturday’s self-guided tour will be held from 11 a.m. to 5 p.m., rain or shine
A bench, a stone path, and a mighty rhododendron add to the charm of the Sanders-Wilson property. Durell Godfrey
With its rose-edged peony buds set to burst in time for Saturday’s Animal Rescue Fund of the Hamptons’s garden tour, the grounds of the property owned by Alex Goren and Brooke Kroeger could be the hit of the day. Durell Godfrey
Frances Schultz's Bee CottageDurell Godfrey

Celebrated internationally for its bold planting style, horticultural diversity, and brightly colored landscaping
Alejandro Saralegui, Madoo’s director, presided over last year’s Much Ado event. Durell Godfrey

Rhododendron viscosum
The Marydel coastal azalea, above, blooms in early June, as does the unknown fragrant azalea, below. Abby Jane Brody Photos
A late bloomer, the Plumleaf azalea, hits its peak in August.

Seven gardens will each offer different terrain, environments, and designs

Being good to the environment need not be analogous to holding your nose while taking cod-liver oil
Lecia Harbison at last year’s Garden Club of East Hampton garden party plant sale preview Durell Godfrey
Monarda bradburiana Lisa Roper/Chanticleer
Echinacea Cheyenne Spirit Abby Jane Brody

There is a deluge of variegated plants on the market, from agave to zelkova, with tulips, lily of the valley, hostas, and huge, mighty oaks in between
Cherry Laurel with clematis
Wolf Eyes Chinese dogwood
Deutzia scabra White Splash
Daphne Carole Mackie

The day starts at Bridge Gardens in Bridgehampton with a tour led by Rick Bogusch at 10:30 a.m.
LongHouse Reserve Durell Godfrey

Something's growing at Open Minded Organics in Bridgehampton, which will host a mushroom-growing class this weekend.

Buffers are the stewards of the waterways
A mature, diverse buffer at Georgica Pond doesn’t block the view. Priscilla Rattazzi
A newly planted buffer will grow into a lush, low-growing habitat. Sara Davison Photo
Hibiscus palustris (Marsh-Mallow), at left, A monarch visits Joe Pye Weed.Durell Godfrey photos
Butterfly Weed with another monarch.Durell Godfrey
Milkweed in bloom Diane Berthel-Bouchier