Click & Grow Smart Garden 9 vs iDOO 12-Pod: I'd Only Pay the $140 Premium for One Specific Reason

The Click & Grow Smart Garden 9 buy on Amazon costs $249.95. The iDOO 12-pod check current price costs $89.99. That’s a roughly $160 gap, and the Click and Grow Smart Garden 9 vs iDOO 12 pod question almost every comparison article on the internet flags and then just… moves on. What nobody actually explains is the one scenario where that gap disappears, and the many scenarios where it doesn’t.

So before anything else: this comparison comes down to one design decision, not features or brand reputation. The Click and Grow Smart Garden 9 vs iDOO 12 pod difference that actually matters is whether your plants share a reservoir or feed independently. Everything else flows from that.

Product Rating

iDOO Hydroponics Growing System Kit 12Pods, Indoor Herb Garden ... 12-pod indoor garden with 22W LED and two growth modes, grows herbs and vegetables 20% faster than soil with 4.5L water tank capacity ~$79.98 4.5★ (7,955) Check Price on Amazon Click and Grow Bundle Smart Garden 9 Gray with 18 Plant Pods ... 9-pod indoor garden with automatic watering and LED grow lights, includes 18 plant pods for herbs, greens, and strawberries ~$271.2 4.5★ (2) Check Price on Amazon iDOO 12 Pods Indoor LED Hydroponic System Kit, Transparent, 5L ... 12-pod system with full-spectrum LED light and 5L water tank, ideal for growing herbs and vegetables year-round indoors ~$89.99 4.5★ (405) Check Price on Amazon Click & Grow Indoor Herb Garden Kit with Grow Light 9-pod hydroponic system with LED grow light for year-round herb and vegetable growing with minimal maintenance. ~$249.95 4.4★ (854) Check Price on Amazon

The Thing Nobody Explains: Shared Reservoir vs. Enclosed Pods

This is the real comparison. Everything else is secondary.

The iDOO is a true hydroponic system. Roots hang in water. All 12 pods share one reservoir, one nutrient solution, one pH. That works great when your plants agree on those conditions, basil, cilantro, lettuce, and dill are all reasonably compatible. But try putting tomatoes and basil in the same tank and you’ve got a problem. Tomatoes prefer a pH closer to 5.8-6.2 and want higher nutrient concentrations as they mature. Basil is more forgiving but doesn’t love extended low pH. You end up picking a winner and starving the other, or you split the difference and both plants perform below where they could.

Click & Grow sidesteps this entirely. Each pod is a self-contained unit with nutrients baked into the Smart Soil and a wick system that feeds independently. There’s no shared reservoir in the same sense. You can put mini tomatoes, wild strawberries, and basil all in the same unit, and each plant pulls what it needs without competing with the others. That’s useful for variety growing, it’s just not a feature most herb-only growers will ever need.

The trade-off is that the iDOO gives roots actual room to grow. In the C&G system, roots are contained within the pod cup, which can cause root-binding in larger plants over time. So the iDOO’s open reservoir is both its limitation (shared chemistry) and its advantage (unconstrained root growth). For herbs and greens, that’s fine. For fruiting plants, the story gets complicated on both sides.

Light Output and Growing Capacity

The iDOO 12-pod runs a 22W LED that adjusts from 4.7 to 10.5 inches above the canopy. That’s meaningfully more light than the C&G Smart Garden 9’s 13W fixed lamp at 10.6 inches. At 22W spread across 12 pods, each pod gets about 1.8W, not impressive for fruiting plants, but fine for herbs and leafy greens. The iDOO 12-pod typically measures 300-350 PPFD at canopy level, which is what you’d expect for that wattage spread.

The C&G’s 13W fixed lamp is weaker. For herbs and compact greens it’s workable, but for anything that needs real intensity, tomatoes, peppers, it’s not going to perform well. The enclosed pod design also limits how tall plants can grow before they hit the lamp.

The iDOO has two light modes: Vegetables (blue, red, far-red, white) and Fruit/Flower (red, far-red, white). C&G runs one fixed 16-hour preset with no adjustment. If you want to dial down to 14-15 hours to slow bolting in basil or cilantro, which makes a real difference, as covered in my guide on light scheduling , you can’t do that on the basic C&G Smart Garden 9. You’d need the Pro model for app control, Click & Grow does offer a higher-tier version, though the pricing fluctuates and isn’t always stocked.

The iDOO also has a built-in fan in the light hood. Small thing, but it helps with heat dissipation and mimics airflow, relevant for tip burn management and pollination if you’re attempting fruiting crops.

The Real 12-Month Cost

Sticker price is the wrong number to compare. Here’s what a year actually costs:

iDOO 12-pod: $89.99 hardware. Running 22W at standard US electricity rates works out to roughly $37-38 per year. Third-party sponges run under $0.15 each, and you can get 100 of them for around $12-15. Add seeds from your own stock or cheap packets and you’re looking at maybe $20-30 in annual growing media and seeds total.

Click & Grow Smart Garden 9: $249.95 hardware. The 13W lamp draws less power, roughly $9-10 per year on electricity. But the pods cost about $3.31 each, sold in 3-packs for roughly $9.95. There are no known third-party Smart Soil alternatives that actually work with the wick system. If you plant all 9 pods three times a year, that’s 27 pods at $3.31 each, around $89 in pods annually, before accounting for anything that doesn’t sprout.

And some won’t sprout. A meaningful share of C&G pods fail to germinate, the germination failure rate shows up consistently enough in reviews to be a budget consideration, not just a one-off complaint. C&G does offer a germination guarantee and will replace pods that fail, which is worth something. But the replacement takes time. You’re looking at weeks before a replacement pod arrives, which breaks the continuity of your grow cycle. For someone who set this up specifically to have fresh herbs available without gaps, that’s annoying.

So year-one total: iDOO around $130-145. C&G Smart Garden 9 around $260-350 depending on how many pods fail and how often you replant. The math gets worse for C&G every year after that since the hardware cost disappears but the pod dependency doesn’t.

The full cost breakdown across multiple systems is tracked on my growing data page if you want to compare these numbers against AeroGarden and LetPot ownership costs.

🏆 Best Value Overall iDOO Hydroponics Growing System Kit 12Pods, Indoor Herb Garden ... 12-pod indoor garden with 22W LED and two growth modes, grows herbs and vegetables 20% faster than soil with 4.5L water tank capacity 4.5★ ~$79.98 Check Price on Amazon

The Transplanting Angle (Outdoor Gardeners, Pay Attention)

This is the angle none of the comparison articles cover, and it matters specifically if you’re an outdoor gardener using an indoor system as a seed-starting station.

The C&G enclosed pod cups contain roots cleanly. When you want to move a plant outside in late spring, you pop the cup out and transplant it with the root ball intact. Clean, low-trauma, works mid-cycle.

The iDOO’s open reservoir means roots grow freely and often grow long. After 6-8 weeks, root tangles can fill the bottom of the tank. Trying to extract a single plant without disturbing the others is risky, you’re likely to damage roots across multiple plants in the process. The common outcome with tomato plants in the iDOO is that roots outgrow the basket and become unmanageable well before transplanting is practical.

If your plan is to start 6-8 herb plants indoors in March and move them outside in May, the C&G workflow is cleaner. The iDOO is better as a permanent herb garden than as a transit system.

Tomatoes in a 12-Pod System: What Actually Happens

Both systems get sold with tomato pod kits. Both systems will start tomatoes. Neither is actually suited to running tomatoes to maturity.

In the iDOO, even dwarf tomato varieties hit the pod basket limits. Standard dwarf tomatoes eventually need transplanting to something larger, and the iDOO’s 11-inch max grow height is a real ceiling. The light intensity per pod isn’t high enough for sustained fruiting either. You’d need supplemental lighting to get meaningful tomato production, as covered when troubleshooting AeroGarden tomato attempts in this post on supplemental grow lights .

In the C&G, the enclosed pod and root-bound design limits plant size even more. Mini tomato varieties can produce, but they’ll be compact and modest. The 13W lamp isn’t strong enough for the sustained intensity tomatoes need to set flowers reliably. For anything resembling real tomato production, both systems are seed-starting tools at best.

The only fruiting plant that makes genuine sense in a 12-pod system is a single compact pepper variety or a Tiny Tim-style microdwarf tomato occupying just one or two pods, with everything else being herbs or greens.

Click & Grow Indoor Herb Garden Kit with Grow Light 9-pod hydroponic system with LED grow light for year-round herb and vegetable growing with minimal maintenance. 4.4★ ~$249.95 Check Price on Amazon

Noise, Maintenance, and Day-to-Day Use

The C&G Smart Garden 9 has no pump. It’s completely silent. Water wicks up to roots passively. You don’t do water changes, when the reservoir gets low, you top it off. That’s it. No nutrients to measure, no pH to monitor, no drain hole to manage. It’s as close to houseplant-level maintenance as hydro gets.

The iDOO has a water circulation pump that runs audibly. It’s not loud, but it’s there, comparable to a small tabletop fountain. Manageable in most kitchens, noticeable in a quiet room. But the iDOO has an actual drain hole for water changes, which makes proper maintenance much easier. The iDOO’s drain hole is a real practical advantage over systems that require you to tip the whole thing, as covered in my maintenance guide .

The iDOO also requires you to manage nutrients. At startup and each water change, you add solution from two bottles, not complicated, but it’s a step. C&G builds all of that into the Smart Soil pods. If you’ve never used nutrients before and don’t want to learn, C&G removes the decision entirely.

Using Your Own Seeds

Both systems support it, but differently.

The iDOO sponges don’t include seeds, you’re always bringing your own or buying separately. That’s actually an advantage for experienced gardeners with their own seed stock. You’re not locked into a pod catalog, and third-party sponges give you a lot of cheap alternatives to OEM pods .

C&G sells “Grow Anything” Smart Soil pods for about $3 each with no seeds, same price as the seeded pods. There are no third-party Smart Soil alternatives with the same wick-and-nutrient design, so even when you’re bringing your own seeds, you’re still paying the C&G pod price. That’s the part worth pushing back on. The per-pod cost with Click & Grow is a ripoff and it doesn’t get better just because you’re providing your own seeds.

This article is part of my Countertop Hydroponic Systems: Complete Comparison , a complete resource for countertop hydroponic growing.

Frequently Asked Questions

Is Click and Grow worth the extra cost compared to iDOO?

At $249.95 vs $89.99, the $160 premium is hard to justify for herb-only or single-crop growers. It makes sense if you want to grow different plant types simultaneously without managing shared pH, C&G’s self-contained pods let you mix tomatoes, lettuce, and basil in one unit. For anyone growing the same crops together, the iDOO wins on value without debate.

Can you grow tomatoes in the iDOO 12-pod system?

You can start them. Keeping them is another story. Even compact dwarf varieties tend to outgrow the pod baskets after several weeks, and the common outcome is having to pull a tomato plant because roots became unmanageable in the shared reservoir. If you want to start tomatoes indoors for eventual transplanting outside, the iDOO can handle that 6-week window. For growing tomatoes to maturity in the system, look at something with more height clearance and stronger light.

Can you mix different plants in iDOO and Click and Grow?

In the iDOO, all plants share one reservoir, so mixing plants with conflicting pH or nutrient needs (tomatoes and basil, for example) means one of them is growing in suboptimal conditions. In C&G, each pod feeds independently from the Smart Soil, so you can grow tomatoes, wild strawberries, lettuce, and basil simultaneously without any of them affecting the others. This is the clearest technical advantage C&G has.

Does Click and Grow make noise?

The Smart Garden 9 is completely silent, no pump. The iDOO runs a water circulation pump that’s audible, comparable to a small tabletop fountain. Not disruptive in most kitchens but present. Worth considering if the system will be near a bedroom or living space where background noise matters.

Which is better for transplanting plants outdoors?

C&G by a fair margin. The enclosed pod cups keep roots contained, so plants come out cleanly mid-cycle and transplant without root damage. iDOO roots grow freely in the open reservoir and can reach significant size, extracting one plant without disrupting others gets difficult, and mid-cycle transplanting is risky. If your goal is an indoor head-start for outdoor growing, C&G’s design is better suited to that workflow.

Can you use your own seeds in Click and Grow and iDOO?

Yes to both, but the economics are different. iDOO sponges are available cheaply from third-party sellers, so bringing your own seeds costs almost nothing per pod. C&G’s “Grow Anything” pods still cost around $3 each even without seeds included, and there aren’t equivalent third-party options. For growers with existing seed stock, iDOO is much more flexible and cheaper to run.

The bottom line on this comparison is pretty simple. The iDOO 12-pod is the better system for most people most of the time, more light, lower running costs, better long-term value, more flexibility with seeds. The C&G Smart Garden 9 earns its premium in exactly one use case: you want to grow different plant types in one unit without learning anything about nutrient chemistry. And that’s a real thing some people want. It’s just a narrower group than the C&G’s $160 price gap would suggest.

If you’re coming from outdoor gardening and already understand soil chemistry, the iDOO’s learning curve isn’t steep. But the pH question and nutrient management are manageable with basic tools. The C&G’s no-maintenance appeal is real, but you’re paying for it every time you buy replacement pods.