GOFFSTOWN — Considered a destination nursery by New England gardeners for decades, Uncanoonuc Mountain Perennials will celebrate its 21st annual Open House & Garden Party this weekend, July 21-22, from 9 a.m. to 5 p.m.

On display will be more than 60 varieties of daylilies in full bloom, plus 900 types of hardy perennials, roses, ornamental grasses, berry bushes and more. Gardeners and nongardeners alike are invited to stroll 2-1/2 acres of breathtaking beauty in a park-like setting overflowing with color. On both Saturday and Sunday at 11a.m., nursery founder/owner Nettie Rynearson will present “Love 'em and Leave 'em” — a look at a carefully selected group of lovely, low-maintenance, long-lived perennials.

On Saturday at 1 p.m., join us for the presentation “All Things Roses. Join Rynearson in the formal rose garden — with your questions about the care and feeding of roses. On Sunday at 1 p.m., a team of New Hampshire State Master Gardeners, led by Hillsborough County UNH Extension Director Margaret Hagen, will do soil pH analyses. Guests are asked to bring bagged half-cup samples of garden soil (not mulch) for testing.

All events, including lemonade to sip, cookies to munch and drawings for gift cards each day, are free. For directions, to go uncanoonucmt.com.