Guides
Plain reference pages for the trade and the people who buy from it, built from growers' published availability and the HortOS Plant Price Index.

Nursery Pot Sizes Explained: Millimetres, Litres and Gallons
Australian growers name a pot by its rim diameter up to 400 mm and by its volume in litres above that, while American growers use gallon classes. This guide explains each step of the ladder, the approximate height and age behind it, how to convert between systems, and what the trade pays at every size.
Last updated: Figures from the HortOS Plant Price Index, September 2026 edition.

What a Tree Costs at the Nursery, by Container Size and Caliper
A tree has a knowable wholesale price before freight, planting and margin are added, and the container size sets it far more than the species does. This page gives the trade prices for seven widely grown American trees at every size three or more growers publish, with the sizing rules behind them.
Last updated: Figures from growers' current trade lists on us.hortosapp.com as at 21 September 2026, not an Index edition; refreshed with the first United States edition of the HortOS Plant Price Index.

Buying From a Wholesale Grower When You Are Not in the Trade
Native plant societies, watershed districts, land trusts, schools and church committees can buy from wholesale growers when they order like the trade: in quantity, ahead of the season, on the grower's terms. This page explains who sells to whom, resale certificates and exemptions, minimums and pooling, the sizes to buy, straight species and ecotype, lead times and shipping.
Last updated: Figures from the live us.hortosapp.com price pages and plant pages on 24 September 2026; refreshed with the first United States edition of the HortOS Plant Price Index.

The Most Grown Native Plants in the United States, by State
A data page, not an essay: the American native plants held by the most wholesale growers, counted grower by grower and state by state from growers' current lists on HortOS, with the median trade price at the size most growers price. Two paragraphs on what the tables show and what they do not, then the tables, refreshed each edition.
Last updated: Counts and medians from the live us.hortosapp.com plant and price pages on 24 September 2026; refreshed with each United States edition of the HortOS Plant Price Index.

Street Trees and Canopy: What Advanced Stock Costs and Who Holds It
A standing reference for urban forestry programs and tree nonprofits: the trees the American trade grows for streets and parks, the nursery-gate median at #15, #30, #45 and #65 and as field grown stock, how many growers in each state hold advanced stock, why lead times run to years, and what a street tree costs against a giveaway.
Last updated: Figures from the live us.hortosapp.com price and plant pages on 24 September 2026 and growers' current lists compiled the same month; refreshed with the first United States edition of the HortOS Plant Price Index.

Reading a Wholesale Availability List, and Pricing the Plants in a Bid
For landscape contractors, designers, estimators and students: what each column of a wholesale availability list means, how much the same plant at the same size varies between growers and states, how the low, median and high on the price pages are built, and how to carry the plant line of a bid from the list to the client.
Last updated: Figures from the live us.hortosapp.com price pages on 24 September 2026; refreshed with the first United States edition of the HortOS Plant Price Index.

What Plants Cost at the Nursery in 2026
The general reference behind every article on what a landscape costs: the median trade price ex tax of the line most growers price at each container class from #1 to #100, the spread across growers, the difference between states, what a nursery-gate price leaves out, and worked figures for a planting, a street tree order and a giveaway.
Last updated: Figures from the live us.hortosapp.com price pages on 24 September 2026; refreshed with the first United States edition of the HortOS Plant Price Index.

Nursery Industry Statistics 2026, and How to Cite HortOS
The two kinds of nursery industry number, the government's census and the live supply picture, for the United States: the USDA's 2024 census figures, growers listed on HortOS by state and city, the plants listed by the most growers, the trade price ladder by class, and how to cite HortOS now and the Index when it publishes.
Last updated: Figures from the live us.hortosapp.com pages on 24 September 2026 and the USDA's 2024 Census of Horticultural Specialties (released 26 February 2026); refreshed with the first United States edition of the HortOS Plant Price Index.