TOFG-all

Propagation/Greenhouse Management

Unit 1.3 | Part 1 – 141
Resources

extension.umass.edu/floriculture/fact-sheets/

organic-greenhouse-production-and-resources

Provides information and links to a wide array

of topics germane to organic growers, including

biocontrol, growing media and fertility inputs.

extension.umass.edu/floriculture/greenhouse-

best-management-practices-bmp-manual

Provides link to lengthy publication on Best

Management Practices for greenhouses. Focus is

on conventional production, but contains lots of

information relevant to organic production.

SEED COMPANIES

The following sources offer exclusively GMO-free

varieties, specify if their seed is fungicide treated,

and can supply letters for your Certifier stating that

your purchases are in compliance with the USDA’s

National Organic Program (NOP) regulations.

Baker Creek Heirloom Seeds

http://www.rareseeds.com

Large collection of heirloom and difficult-to-find

vegetable seeds.

Botanical Interests

botanicalinterests.com

Purveyor of vegetable, flower, and herb seeds,

many organic and heirloom varieties.

Bountiful Gardens

http://www.bountifulgardens.org

Vegetable and small grain seeds, seeds for

compost biomass production, principally open-

pollinated varieties, nutritionally dense crops.

Fedco

http://www.fedcoseeds.com

Vegetable, flower, and herb seeds, tubers and

allium bulbs, many organic and open pollinated

varieties.

Fred C. Gloeckner Co.

http://www.fredgloeckner.com

Flower seeds, bulbs, plug broker, and grower

supplies.

Geo Seed

http://www.geoseed.com

Flower, ornamental grass, and perennial seeds

for cut flower growers.

eXtension, Organic Potting Mixes

http://www.extension.org/pages/20982/organic-pot-

ting-mix-basics#.VN0ZB7DF_v6

Covers basic information about organic potting

mixes for organic farming systems.

Integrated Pest Management, UC Davis

http://www.ipm.ucdavis.edu

Excellent resource for insect identification and

non-chemical control strategies, as well as

links to other sites concerned with pests and

pathogens. While focused on California, the

content is highly transferable to growers in

other regions.

New York State/Cornell IPM Program

http://www.nysipm.cornell.edu

Valuable resource covering many fruit and

vegetable crops, including identification

information, cultural practices and inputs to

manage pests and diseases.

Royal Horticultural Society

http://www.rhs.org.uk/Advice/Profile?PID=710

Provides clear definition of F1 Hybrids and

explanation of how F1 Hybrids are produced, as

contrasted with open pollinated seed varieties.

http://www.rhs.org.uk/advice/profile?PID=501

Provides straightforward explanation of

methods and conditions for growing seedlings

indoors.

Soil Foodweb

http://www.soilfoodweb.com

A clearinghouse for information and research

summaries on soil ecosystem process and a

product, services and resource for how to grow

crop plants without the use of pesticides or

inorganic fertilizers. Includes how-to manuals

on the production of compost teas.

University of Massachusetts Extension Greenhouse
Crops and Floriculture Program

extension.umass.edu/floriculture/fact-sheets/

greenhouse-management-engineering

Links to many valuable website pages for

organic and conventional greenhouse producers

on design, energy efficiency, water management,

environmental management, pest and disease

monitoring, and more.