Terms of Service
Last updated: 30 September 2026These terms are the agreement between you and Sarah Whitfield, who runs Urban Hydro Space (“we”, “us”), for using urbanhydrospace.com, its calculators, the grow planner and our emails. By using the site you agree to them. If you do not agree, please do not use the site.
They are written in plain language. Our Privacy Policy, Disclaimer and Affiliate Disclosure are part of them.
1. Using the site
Anyone may read the site. To join the newsletter, leave a comment or open a grow planner account you must be at least 13 years old, or older where the law of your country requires it (in some EU countries, 16). Each planner account is for one person.
You are responsible for how you use what you read here, for the equipment you buy and for the place you grow in, including any rules your landlord, building or local authority sets.
2. Information only, not professional advice
Everything on Urban Hydro Space, including the guides, the numbers in our tables, the calculators, the grow planner and the book pages, is general information for home growers. It is not professional electrical, plumbing, medical, nutritional, veterinary, legal or financial advice, and it is not a substitute for the instructions and safety warnings that come with your products.
Hydroponics involves water, electricity, lights that get hot and chemicals such as pH adjusters and nutrients. Read our Disclaimer for the safety points we ask every reader to follow. You act on the information at your own risk and judgment. We work hard to keep it accurate, with the sources listed on our sources page, but plants, homes and products vary, and we cannot guarantee any result.
3. Affiliate links, prices and other sites
Urban Hydro Space is a participant in the Amazon Services LLC Associates Program and Amazon’s associate programs for Canada, the UK and Australia, affiliate advertising programs designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon. As an Amazon Associate I earn from qualifying purchases. This costs you nothing extra. Amazon is the only affiliate program we take part in. Details are in our Affiliate Disclosure.
We do not sell anything on this site. Our own book and every product we link to are sold by Amazon or by sellers on Amazon. When you buy through a link, you buy from them, under their terms, and questions about orders, delivery, returns and warranties go to them.
Product prices and availability shown on this site come from Amazon, are accurate as of the date and time shown beside them, and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of the product. Prices are shown in US dollars from Amazon.com, so the price in your own country’s Amazon store may differ.
We link to other websites we think are useful. We do not control them and are not responsible for their content, products or privacy practices.
4. Calculators and the grow planner
Our calculators, the printable tracker and the grow planner at urbanhydrospace.com/grow-planner/ are free. Their schedules and numbers are general guidance built from published sources, like the rest of the site, so check your own plants and adjust.
A planner account is optional and is created with Sign in with Google. You keep ownership of everything you put in your planner. You allow us to store it and show it back to you, which is the only thing we use it for, as explained in the Privacy Policy. Keep your own backups: Settings in the planner lets you download one at any time.
We work to keep the tools running, but they are provided as they are, and we cannot promise they will always be available, free of errors or kept forever. If we ever plan to close the planner or its accounts, we will give account holders reasonable notice by email so they can download their plants first, unless we have to act sooner for security or legal reasons. You can delete your account at any time in the planner: Settings, Your account. We may suspend or close an account used to abuse the site or break these terms.
5. Newsletter and emails
The newsletter is free, arrives at most once a week and can be stopped with one click from any email. Planner reminder emails go only to account holders who switch them on, and can be switched off in Settings or from the email itself.
6. Your comments and messages
You keep ownership of comments you post and messages you send. By posting a comment, you give us a free, worldwide, non-exclusive permission to publish it on the site, alongside the post, for as long as the post is online, and to edit it for length, spam links or personal information. You can ask us to remove your comment at any time.
Please only post what you have the right to share, and nothing that is unlawful, abusive, hateful, sexually explicit, misleading, spam or advertising, or that includes someone else’s personal information. We may hold, edit or remove any comment at our discretion.
7. What you may not do
- Scrape, crawl in bulk or download large parts of the site, or use its content, tables, pictures or tools to train or improve artificial intelligence models or datasets, without our written permission. Ordinary search engines indexing the site are welcome.
- Copy our calculators, the grow planner, their code, our crop tables or our images into another website, app or product.
- Try to break into, overload, probe or get around the security of the site, its accounts or its forms, or send automated sign-ups, comments or messages.
- Use the site or the planner for anything unlawful, or to harm, harass or mislead anyone.
- Pretend to be us or suggest we endorse you, your product or your site.
8. Our content and your right to share it
Unless we say otherwise, Urban Hydro Space owns the rights in this website’s words, tables, illustrations, photos, tools, code, the name “Urban Hydro Space” and its logo. Facts and figures from published research belong to no one, and our sources page lists where ours come from.
You are welcome to read, print and save pages for your own personal use, to share links to any page, and to quote a short passage (a few sentences) with credit to Urban Hydro Space and a link back to the page. You may not republish whole articles or large parts of them, sell, rent or license our content, or use it commercially without our written permission. Product names, images from Amazon and other trademarks belong to their owners. To ask for permission, email sarah@urbanhydrospace.com.
9. Copyright complaints
We respect the rights of others. If you believe something on this site infringes your copyright, email sarah@urbanhydrospace.com with: the work you believe is copied; the address of the page where it appears; your name and contact details; a statement that you believe in good faith the use is not authorized by you, your agent or the law; a statement that the information in your notice is accurate and, under penalty of perjury, that you are the owner or authorized to act for the owner; and your physical or electronic signature. We will look into it promptly and remove material that infringes. If your comment was removed and you believe that was a mistake, you can send us a counter-notice with the same kind of detail. We remove the comments of anyone who repeatedly infringes.
10. No warranty
To the fullest extent the law allows, the site, its content, the calculators, the grow planner and our emails are provided “as is” and “as available”, without warranties of any kind, whether express or implied, including warranties of accuracy, completeness, fitness for a particular purpose, merchantability and non-infringement. We do not promise that the site will be uninterrupted, secure or free of errors, or that any plant, product or setup will perform as described.
11. Limits on our liability
To the fullest extent the law allows, Urban Hydro Space will not be liable for any indirect, incidental, special, consequential or punitive losses, or for loss of data, crops, profits or goodwill, or for damage to property, arising from your use of, or inability to use, the site, its tools or any product you buy through a link, even if we were told such losses were possible. Where we are liable despite this, our total liability for all claims is limited to fifty US dollars (US$50), because the site is free.
Nothing in these terms limits or excludes liability for death or personal injury caused by negligence, for fraud, or for anything else that cannot be limited or excluded by law. If you break these terms and that leads to a claim against us, you agree, to the extent the law allows, to cover the reasonable costs that result.
12. Your consumer rights
Some countries and states do not allow some of the exclusions or limits above, so they may not apply to you. Nothing in these terms takes away rights you have under the consumer protection laws of the country or state where you live that cannot be waived by agreement.
If something goes wrong, please contact us first at sarah@urbanhydrospace.com. We will try in good faith to sort it out within 30 days. If we cannot, the courts named in section 14 decide it, unless the law where you live gives you the right to go to your own courts or consumer bodies, which these terms never take away.
13. Changes and ending access
We may update the site, its tools and these terms. When the terms change, we update this page and the date at the top; changes apply from that date and do not reach back to anything you did before. If a change is significant for planner account holders, we will also tell them by email. If you keep using the site after a change, you accept the new terms; if you do not, please stop using the site and, if you have one, delete your planner account.
We may suspend or end anyone’s access to the site, the planner or comments if they break these terms. The sections on intellectual property, no warranty, liability and general terms keep applying after that.
14. General
These terms, with the documents they mention, are the whole agreement between you and us about the site. If a court finds any part of them unenforceable, the rest still applies. If we do not enforce a term straight away, we can still enforce it later. You may not transfer your rights under these terms; we may transfer ours to anyone who takes over the site, and your rights under these terms and our Privacy Policy stay the same. These terms are written in English, and the English version applies if a translation differs.
Governing law. These terms, and any dispute about them or about the site, are governed by the laws of the State of New York, United States, and applicable United States federal law, without regard to conflict-of-law rules. Any such dispute that we cannot settle together goes to the state or federal courts located in New York County, New York, and you and we agree to their jurisdiction, except where the law of the country or state where you live gives you the right to bring it in your own courts or keeps its consumer protections in place.
Questions about these terms?
Email sarah@urbanhydrospace.com or use the contact page, and we will get back to you personally.
