Seed companies

Botanical Interests

Broomfield, Colorado, serving United States online orders. Listed as a reference, not an endorsement.

Overview

Botanical Interests publishes a retail seed catalog with vegetable, herb, flower, and gardening information. This listing is provided for reference, not as an endorsement, certification, ranking, or guarantee of current availability.

Services and programs

  • Vegetable seeds
  • Flower seeds
  • Herb seeds
  • Growing information

What to verify before you go

Contact the organization or review its official source before making a trip, placing an order, joining a garden, or applying for funding. Details that commonly change include:

  • Current stock
  • Packet details
  • Shipping policies

Related directory resources

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Sources and last verified

Source: Botanical Interests. Last checked 2026-10-04.

Botanical Interests publishes a retail seed catalog covering vegetables, flowers, herbs, and related gardening information.

What this listing covers

The company source provides seed categories, packet information, and growing guidance. A catalog entry does not guarantee current stock.

Before ordering

Review the product page for current availability, packet details, shipping policies, and any regional growing notes.

More tools

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Calculate

Soil pH amendment calculator

Get pounds of lime or sulfur to move your soil pH.

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Plant pH preferences

Look up the soil pH range your plants prefer.

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Plants per person calculator

Size each crop planting to your household.

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Yield per square foot estimator

Estimate a harvest range from planted space.

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Garden guides

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Greenhouse growing

Greenhouse temperature guide for seeds and seedlings

Use crop-specific greenhouse temperatures for seed germination, seedlings, frost protection, and ventilation, with practical day and night ranges.

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Diagram of a raised bed cross section showing timber walls, a layer of existing soil or coarse fill, and the measured depth of new soil being added.

Materials

How much soil does a raised bed need?

How to measure a raised bed and turn the volume into bags or bulk cubic yards, with a worked example for a common 8 by 4 bed.

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October calendar diagram showing planting windows for garlic, spring bulbs, hardy greens, and cover crops closing as the first fall frost approaches.

Seasonal

What can I plant right now in my garden?

In early October, most US gardeners can still plant garlic, spring bulbs, hardy greens, and cover crops. Here is what is still open and what has closed.

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Diagram of a tulip bulb in a soil cross section planted at about three times its own height, pointed end up, with a depth marker of 6 to 8 inches.

Fall planting

When should I plant tulip bulbs?

Plant tulip bulbs in fall, about 6 to 8 weeks before the ground freezes. Here is how the window shifts by region and how deep to plant.

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Plant library

Browse all plants
Illustration of sweet potato tubers below the soil line with leafy growth above

Vegetable

Sweet potatoes

A sprawling warm-season vine grown from slips, with roots that cure into sweeter storage.

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Illustration of a swiss chard plant with broad upright leaves

Vegetable

Swiss chard

A forgiving leafy green that tolerates both frost and summer heat and harvests for months.

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Illustration of a peanut plant with leafy growth above and pods below the soil line

Vegetable

Peanut

Peanut planting, hilling, and harvest guidance for home gardens, including why the yellow flowers dive underground to make pods.

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Illustration of a sesame stalk lined with upright seed capsules

Vegetable

Sesame

Sesame planting, watering, and harvest guidance for home gardens, including how to beat the pods' habit of splitting open.

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Glossary terms

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timing

Hardiness zone

A hardiness zone groups locations by average annual extreme minimum temperature. Learn what the USDA zone can tell you and what it cannot predict.

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soil

Hardpan

Hardpan is a dense soil layer that restricts roots, air, and water movement. It can form naturally or result from compaction and repeated traffic.

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plant labels

Heirloom

Heirloom describes a plant variety preserved and passed through growers over time. It is not a universal legal definition or performance guarantee.

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plant labels

Hybrid

A hybrid is offspring from parents with different genetic backgrounds, often bred for traits such as vigor, uniformity, flavor, or disease resistance.

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