Cornell Cooperative Extension

Suffolk County

  • Agriculture
  • Community Education
  • Gardening
  • Horticulture Labs
  • Marine
  • Energy
  • County Farm
  • 4-H
  • Peconic Dunes
  • Recursos en Español
  • Home
  • About
  • Staff
  • Careers
  • Volunteer
  • Press
  • Events
  • E-News
  • Resources
  • Staff Only
  • Donate
  • Search
  • Contact Us
  • Find Us

Cornell Cooperative Extension

Suffolk County

  • Agriculture
  • Community Education
  • Gardening
  • Horticulture Labs
  • Marine
  • Energy
  • County Farm
  • 4-H
  • Peconic Dunes
  • Recursos en Español
daisy

Perennials are favorites among gardeners.

Japanese anemone in bloom
Image by Sandy Repp

Scented flowers bring bees to your yard for pollination.

  • Home »
  • Horticulture Diagnostic Labs >
  • Horticulture Factsheets >
  • Annual and Perennial Flowers, Bulbs and Ornamental Grasses
Share on Facebook Share on Twitter Share on LinkedIn Share on Pinterest>

Annual and Perennial Flowers, Bulbs and Ornamental Grasses


Flower Growing guides

Sequence of Bloom of Perennials, Biennials & Bulbs - Including height & color range

Ornamental Grasses for the Home and Garden

Annual Flowers for New York State (Site requirements, size, etc.)

Annuals for Special Uses

Ferns and Native Plants in the Natural Landscape for Long Island

Meadow Gardening

Perennials

Perennials for Special Uses

Plant List for Everlastings (Plants for Drying)

Potpourri and Fragrance Gardens

Resistance of Annuals, Biennials, Perennials, Groundcovers and Vines to Deer Damage

Summer Flowering Bulbs

Ten Winsome Wildflowers for Your Garden

The Culture of Garden Chrysanthemums

The Culture of Herbaceous and Tree Peonies

The Culture of Spring Flowering Bulbs

Growing Iris

Impatiens Downy Mildew

Contact

Alice Raimondo
Horticulture Consultant
aw242@cornell.edu
631-727-4126

Last updated November 26, 2025

Horticulture Factsheets

  • General Gardening Information
  • Vegetable Gardening
  • Lawn Care
  • Ornamentals: Trees, Shrubs, Herbaceous
  • Growing Fruit
  • Indoor / Outdoor Insect Pests, Wildlide & Poisonous Plants
  • Christmas Trees
Translate this page?

Cornell Cooperative Extension
Suffolk County

Extension Education Center
423 Griffing Avenue, Suite 100
Riverhead, New York 11901-3071
TEL: 631-727-7850
suffolk@cornell.edu
Hours: 8:30am-4:30pm

  • Visit our Facebook
  • Visit our Twitter
  • Visit our Pinterest
  • Visit our YouTube
  • Visit our Instagram
  • Visit our LinkedIn

Growing Degree Days (GDD)

Upcoming Events

Careers & Volunteers

Board of Directors

Disclaimer of Liability & Endorsement

Privacy Policy

undefined

If you have a disability and are having trouble accessing information on this website or need materials in an alternate format, contact suffolk@cornell.edu for assistance.

© Copyright 2026. All Rights Reserved.

  • About
  • Careers
  • Volunteer
  • Press
  • E-News
  • Resources
  • Staff Only
  • Donate
  • CALL
  • CONTACT
  • EVENTS
  • FIND US
  • SEARCH
  • STAFF
  • MORE