Indoor gardens for care homes

Many older people have gardened all their lives, and moving into a care home often means leaving that behind. A smart indoor garden at table height brings a small part of it back: seeds to sow, herbs to smell and touch, something that changes from week to week and a reason to gather. This page is for activity coordinators, nurses and care home managers who want to know what the evidence says, which setup works, how to keep it hygienic and what it costs.

What the evidence says

Gardening activities for older people have been studied quite a lot, though mostly in small studies. Two meta-analyses in Frontiers in Public Health pooled 13 studies each. Zhang and colleagues (2022) and Xu and colleagues (2023) both found that horticultural activities reduced depressive symptoms in older adults. Xu and colleagues saw the clearest effects in care settings and when people took part actively rather than only watching. Both reviews also point out the limits. The studies were small, very different from each other and mostly from Asia, and they often measured the effect only right after the programme ended.

So the honest summary is that research suggests hands-on gardening activities can lift mood in older people in care, but the evidence is not strong enough to promise an effect. None of the studies used an indoor hydroponic garden. We do not sell the garden as therapy. It is an activity tool, and how much it gives depends on how you use it with your residents.

Setups that work

A garden at table height in the activity room

A LetPot Senior with 12 pods is our usual suggestion. It is made of 304 stainless steel and ABS, its light rises to 76 cm so plants have room to grow, and its 5.5-litre tank lasts about 3 weeks. Put it on a stable table at a height residents can reach from a chair or a wheelchair, so they can sow, touch and harvest without bending or standing. One garden per activity room or floor is a good start.

Herb sessions

Fragrant, soft-leaved herbs work best because they invite people to touch and smell: basil, peppermint, lemon balm, parsley, dill and chives. A weekly 30-minute session with a small group is enough to keep the garden part of the routine. Ideas that tend to work include sowing together and labelling the pods, comparing how much each plant has grown since last week, rubbing a leaf and talking about the smell and what it reminds people of, and harvesting herbs for tea or a salad, following your kitchen’s food safety rules. Residents who prefer to stay in their room can have a smaller LetPot Mini on a table, though its 1.5-litre tank needs topping up every 7 to 10 days.

A setup that needs little staff time

If staff time is tight, the LetPot Max (€249) refills itself from an external tank placed lower than the garden and adds nutrients automatically, so it needs attention only every 2 to 4 weeks. Its light also rises to 76 cm.

Safety and hygiene

Hydroponic gardens grow plants in water and sponges, so there is no potting soil in the room. Some infection control teams prefer that, since old research found potentially harmful fungi in the soil of hospital pot plants (Summerbell et al. 1989). That study was about soil, not hydroponics, and standing water needs its own care routine.

• Water. Change the water and clean the tank between grows: empty it, wash with warm water and a little mild detergent, rinse and dry. Do not let water stand in a garden that is switched off.
• Algae and mould. Cover every empty pod slot with the light-blocking stickers in the box, because light reaching the water causes algae. Remove germination covers once seedlings appear, which helps prevent mould on the sponges.
• Cables and trips. Place the garden close to a socket and run the cable along the wall or table edge, away from walking routes and wheelchairs.
• Stability and spills. Use a stable table that can take a full tank. The Senior holds 5.5 litres of water. Refill with a jug and wipe up spills right away.
• Residents. Check allergies and swallowing risks before tasting sessions, and ask your infection control lead if residents have weakened immune systems.
• Light. The LED light is bright. Position it so it does not shine into residents’ eyes, and set it to switch off in the evening.

Staff time and holidays

Someone needs to own the garden, usually the activity coordinator. The routine takes a few minutes a week outside the sessions: topping up water, checking the plants and keeping a few spare grow sponges and seed packets ready. The Senior’s tank lasts about 3 weeks, so during staff holidays one top-up every two to three weeks is enough. The LetPot app sets the light schedule and sends low-water reminders to the phone of whoever manages the account. Use a shared work e-mail for it rather than a personal one.

Electricity and running costs

A garden with a light of about 24 W running 16 hours a day costs about €21 a year in electricity at a business tariff of about €0.15 per kWh. The 36 W LetPot Max costs about €31 a year. These figures cover the light, and the pump adds a little more. Seeds cost from €1.39 a packet, nutrients €17.99 a bottle and 200 grow sponges €24.99.

Ordering

Municipal care homes buy as public bodies and pay by invoice, net 30 days, with a written quote valid for 30 days for your purchase file. Our public sector page has the supplier details and e-invoice information. Private care homes buy as companies and pay by invoice, net 14 days, once we have verified the registry code, or by bank link or card. All the details are on our business page, together with the quote request form. We also offer a setup call online, and in the Tallinn area a setup visit by agreement.

Frequently asked questions

Is this horticultural therapy?

No. We sell the garden as a tool for activities. Research suggests that hands-on gardening activities can reduce depressive symptoms in older people in care, but the studies are small and varied, and we do not make medical claims.

Which garden suits a care home best?

The LetPot Senior for an activity room. It is sturdy, its light rises to 76 cm and its tank lasts about 3 weeks. If staff time is very limited, the LetPot Max refills itself from an external tank.

Can residents in wheelchairs take part?

Yes, if you place the garden on a table at a height they can reach from the wheelchair. The garden sits on the table top, so residents can sow, touch and harvest while seated.

Which plants are best for sessions?

Fragrant herbs such as basil, peppermint, lemon balm, parsley, dill and chives. They are easy to grow and good to touch and smell.

Is it hygienic?

There is no soil, which some infection control teams prefer. The water needs a routine: clean the tank between grows, cover empty slots and remove germination covers once seedlings appear.

How much staff time does it take?

A few minutes a week outside the sessions to top up water and check the plants. The Max needs attention only every 2 to 4 weeks.

Can residents eat what they grow?

Herbs from the garden can go into tea or a salad. Follow your kitchen’s food safety rules and check allergies and swallowing risks first.

How much electricity does it use?

About €21 a year for a garden with a light of about 24 W and about €31 a year for the LetPot Max, at 16 hours a day and about €0.15 per kWh.

Is the pump noisy?

We have no measured noise figure. The pump runs 30 minutes on and 30 minutes off on the Air, Senior and Max, and like any small pump it can hum a little while it runs.

Can you help us set it up?

Yes. We offer a setup call online, and in the Tallinn area a setup visit by agreement.

What if it breaks?

Every garden has the 2-year EU legal guarantee, handled by us in Tallinn. We keep pumps, power adapters, light panels and sponge kits in stock.

Start with one garden

Most care homes start with one garden in the activity room and see how residents take to it. Ask us for a quote or call us to talk it through.