Your controls
Managing and clearing cookies
Every major browser lets you see the cookies stored for a site, delete individual entries, and block new ones. The exact wording differs, but the path is usually found under settings, then privacy, then site data. If you block all cookies for this domain, the site will still load and the articles remain readable; only the saved cookie preference and any remembered display choice will be lost on your next visit.
Clearing cookies is safe here. It does not delete your messages, because this site does not keep an account for you, and it does not cancel any request you have already sent through the contact form.
- What a cookie stores
- A short label and a small amount of text, such as a preference value or a random session identifier. It is not a program and it cannot read files on your device.
- How long they last
- Session cookies disappear when you close the browser window. Persistent cookies carry an expiry date, which for the preference cookie is set to about twelve months so the site does not ask the same question every week.
- Who can read them
- Cookies set by this site are read by this site. If an optional analytics service is enabled, its script reads only its own cookie, and it is not given your name or email address.
- How to withdraw consent
- Open the cookie banner from the footer and switch optional categories off. The change takes effect immediately and the recorded consent is replaced, so you are not asked again unless the policy changes.
- Where to ask questions
- Write to [email protected] or use the contact page. Cookie and privacy questions are handled by the same team that publishes the plant guides, Monday to Friday, 9:00 AM to 6:00 PM.