Observed arrival · 2026-11-06
Hardy Citrus Atlas
A reference site for comparing cold-hardy citrus varieties, rootstocks, growing conditions, flavors, and uses.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- American gardeners in cold-winter climates
- Worth noticing
- It contrasts a standard lemon at 25°F (−4°C) with Ichandrin yuzu at 0°F (−18°C), while warning that real hardiness varies by conditions.
Field notes
The homepage organizes its material into an inventory, growing guidance, climate and cold hardiness, rootstocks, and culinary uses. Its three-factor guide argues that genetic hardiness is only part of the equation, also emphasizing rootstock choice and protection or care. The site reports documenting more than 170 varieties; its own caveat says the listed temperatures are reference points, not guarantees.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue