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Reference (Gardening & Horticulture, Kindle eBooks): Amazon KDP category data

Amazon Kindle eBooks Best Sellers data for Reference (Gardening & Horticulture, Kindle eBooks), updated Nov 2, 2026: median price $9.44, median 140 reviews, average rating 4.6 and a KDPTop opportunity score of 20/100 (highly competitive).

20Opportunity / 100
$9.44Median price
140Median reviews
Price range (middle 50%)$3.99 – $12.99
Average rating4.6
New releases (90 days)12%
Books on the list100
StoreKindle eBooks

What stands out

  • Its median reviews are 41% of the parent category Gardening & Horticulture (337), one of the easier corners under it.
  • Prices spread wide: the middle half runs from $3.99 to $12.99, so budget editions and premium or boxed sets sell side by side.

Top 10 Reference best sellers

  1. Floriography: An Illustrated Guide to the Victorian Language of Flowers (Hidden Languages) book cover by Jessica Roux

    Floriography: An Illustrated Guide to the Victorian Language of Flowers (Hidden Languages)

    by Jessica Roux

    • List rank#1
    • Price$8.69
    • Rating4.8
    • Reviews5,753

    View on Amazon · Full data on KDPTop

  2. The Vegetable Gardener's Bible, 2nd Edition: Discover Ed's High-Yield W-O-R-D System for A book cover by Edward C. Smith

    The Vegetable Gardener's Bible, 2nd Edition: Discover Ed's High-Yield W-O-R-D System for All North American Gardening Regions: Wide Rows, Organic Methods, Raised Beds, Deep Soil

    by Edward C. Smith

    • List rank#2
    • Price$1.99
    • Rating4.8
    • Reviews3,883

    View on Amazon · Full data on KDPTop

  3. How Not to Kill Your Houseplant New Edition: Survival Tips for the Horticulturally Challen book cover by Veronica Peerless

    How Not to Kill Your Houseplant New Edition: Survival Tips for the Horticulturally Challenged

    by Veronica Peerless

    • List rank#3
    • Price$1.99
    • Rating4.7
    • Reviews7,559

    View on Amazon · Full data on KDPTop

  4. The Complete Guide to Saving Seeds: 322 Vegetables, Herbs, Fruits, Flowers, Trees, and Shr book cover by Robert E. Gough

    The Complete Guide to Saving Seeds: 322 Vegetables, Herbs, Fruits, Flowers, Trees, and Shrubs

    by Robert E. Gough

    • List rank#4
    • Price$12.99
    • Rating4.7
    • Reviews1,096

    View on Amazon · Full data on KDPTop

  5. Houseplants for Beginners: A Practical Guide to Choosing, Growing, and Helping Your Plants book cover by Rebecca De La Paz

    Houseplants for Beginners: A Practical Guide to Choosing, Growing, and Helping Your Plants Thrive

    by Rebecca De La Paz

    • List rank#5
    • Price$8.75
    • Rating4.7
    • Reviews1,705

    View on Amazon · Full data on KDPTop

  6. The Vegetable Gardener's Container Bible: How to Grow a Bounty of Food in Pots, Tubs, and  book cover by Edward C. Smith

    The Vegetable Gardener's Container Bible: How to Grow a Bounty of Food in Pots, Tubs, and Other Containers

    by Edward C. Smith

    • List rank#6
    • Price$2.99
    • Rating4.6
    • Reviews1,228

    View on Amazon · Full data on KDPTop

  7. Carrots Love Tomatoes: Secrets of Companion Planting for Successful Gardening book cover by Louise Riotte

    Carrots Love Tomatoes: Secrets of Companion Planting for Successful Gardening

    by Louise Riotte

    • List rank#7
    • Price$9.30
    • Rating4.7
    • Reviews3,137

    View on Amazon · Full data on KDPTop

  8. Storey's Basic Country Skills: A Practical Guide to Self-Reliance book cover by John Storey

    Storey's Basic Country Skills: A Practical Guide to Self-Reliance

    by John Storey

    • List rank#8
    • Price$13.56
    • Rating4.7
    • Reviews423

    View on Amazon · Full data on KDPTop

  9. Raised-Bed Gardening for Beginners: What You Need to Know to Start and Sustain a Thriving  book cover by Tammy Wylie

    Raised-Bed Gardening for Beginners: What You Need to Know to Start and Sustain a Thriving Garden

    by Tammy Wylie

    • List rank#9
    • Price$8.20
    • Rating4.6
    • Reviews7,116

    View on Amazon · Full data on KDPTop

  10. One Magic Square Vegetable Gardening: The Easy, Organic Way to Grow Your Own Food on a 3-F book cover by Lolo Houbein

    One Magic Square Vegetable Gardening: The Easy, Organic Way to Grow Your Own Food on a 3-Foot Square

    by Lolo Houbein

    • List rank#10
    • Price$3.99
    • Rating4.7
    • Reviews89

    View on Amazon · Full data on KDPTop

FAQ

Is Reference a good niche for Amazon KDP?

Its KDPTop opportunity score is 20/100, which makes it highly competitive. The median best seller has 140 reviews and sells for $9.44.

How many reviews do you need to rank in Reference?

The median best seller has 140 reviews, and 43% of them have fewer than 100.

What do Reference best sellers cost?

The median price is $9.44; half of the best sellers are priced between $3.99 and $12.99.

Can new books break into Reference?

12% of the current best sellers were released in the last 90 days.

About this data

Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.