*COVID-19 UPDATE: Open and shipping online orders for contactless delivery, however please allow extra time for delivery*

Congratulations! You are now on the waiting list, please check your inbox for the confirmation email

Register Account

Sign In

Dyna-Gro ProTeKt - Silicon Plant Supplement

Get on the waiting list so you don't miss out next time


Congratulations! You are now on the waiting list, please check your inbox for the confirmation email


"I added this to my nutrient line up over a year ago and could not be happier. The plants are sturdier and more resistant to heat and pests." @doug_us

"Great product!!! Use with neem oil to make a fantastic insecticide spray." @nathanaiel

"Tons of uses and no side effects, I recommend this highly for anyone serious about horticulture." @j_ayres

"This is one of the best additives for your plants. Silica makes your plants strong and resistant to everything." @smitty

"Used in conjunction with neem oil to kill the plethora of fungus gnats everywhere in my house. Have used 2 times and not only is the infestation 99.9% gone, my plants look very healthy and shiny now. This stuff is amazing!" @cua_usa 

Why choose Pro-Tekt?

It's all in the name! Dyna-Gro Pro-Tekt does just that. Protects. Think of it like your plant's body guard. Tough. Strong. Ready to fight. The power of silicon is no secret to agricultural scientists. It's just taken us house-plant hobbyists a while to catch on to this clever secret-agent to protect our indoor plants.

We simply shouldn't have to live with a constant fear of pests and diseases. Creepy crawlies and mysterious ailments. Then before you know it, your entire jungle's infested. 

Silica is the second most abundant mineral that makes up the Earth's crust. It makes up more than 95% of all known rocks. But indoors? Our plants rely on us to boost  the silicon their soil is missing, so they can protect themselves the way nature intended. 


What does Pro-Tekt do?

 Source of silicon and potassium for faster, stronger growth, and supporting your plant's natural defences against insects, fungal infections and disease.

Whether one plant or your whole gang are prone to pests or constant problems, Pro-Tekt helps them fight back. If the worse happens and you lose a plant, use Pro-Tekt to help prevent the rest becoming the next victims.

Frequent and often
is the best defence. Don't leave it too late. It's better to feed weekly, but if you're already dealing with bugs or disease, you can foliar spray for the fastest protection (see directions for use below). 

SUPPORTS: Thanks to stronger, broader stems, Pro-Tekt also helps nutrients and water travel more easily and efficiently to where they're needed. Even stubborn ones like calcium. Stronger stems support bigger, heavier leaves, flowers, veges and fruit too. 

RESISTS: A bonus side-effect is plants handle neglect and stress better too! Good news for busy plant parents and forgetful waterers, as well as the over-carers. Silicon helps plants be more resistant to drying out, able to cope better with inconsistent watering, and better able to handle both heat, cold and drafts (ideal for the NZ climate). 

Silicon is a fascinating nutrient. The Secret of Silicon is well worth a read to find out more.

*FREE pipette added with every order of Pro-Tekt for easy measuring*

Directions for use

Dilution rates vary. 
For adding to every water (recommended), 1ml to 1.5 litres is the maintenance level. Silicon is a very safe supplement so you can play with the dose a bit to match your plant's needs. Check the full Dyna-Gro Pro-TeKt directions for use before first use. At 1ml per 1.5 litres, 236ml makes over 350 litres. Superb value for money. 


Pro-Tekt keeps silicon in an easily-absorbed liquid form using a high pH concentrate base. Most plant foods are low pH. Make sure you mix Pro-Tekt with water to dilute it first BEFORE adding other foods or tonics

Otherwise Pro-Tekt will turn into a lump of silicon gel! I mix Pro-Tekt with about 3/4 of the water I'm going to use, give it a stir, add my fertiliser, then add the last 1/4 of water and feed.

More reviews 

"Came upon this product at a greenhouse/grower I know and gave it a try. Fantastic product and very easy to use. I have over 70 plants in my house including orchids and I use nothing else but Pro-tekt and Dyna-Gro." @b.hamilton

"So many benefits from using silica. Makes plants strong and toughens plants leaves in a sense for a form of pest management. All dyna grow products are quality in my opinion." @christopher_s

"I use this stuff for all my plants indoors and out. Happy shinny green leaves. Healthy stems. Helps with bug resistance." @jaso_n 

"This helped my plants grow thicker and look healthier. A little goes a long way too." @JJ_voice

"Silica is fantastic. If you are not adding some form of silica you will want to start right now." @privacy_is.nice

"I have hundreds of houseplants... very good value for the money... I've been getting nice sturdy growth using it with my fertilizers." @amanda_vine

"Helps to strengthen root system and make the plant more resilient to changes in temperature and to disease. Highly recommended to all growers!"

"...It has indeed improved their resistance to drought. I used to water them every 2-3 days in the summer, but now I can go as long as 5-6 days or even longer between waterings in the warm season and they still don't wilt. 
My plants are extremely healthy and strong now. I used to baby them and tried to touch them as little as possible.

Now I can handle them, rough them up, brush by them when I'm walking and it doesn't bother them one bit. Even when the wind blows them over I pick them right back up and there are rarely broken stems or damaged leaves. Amazing! I use Pro Tekt on a wide variety of plants - from tropicals such as peace lilies to epiphytes such as bromeliads and orchids to succulents such as cactus and Euphorbia.

None have reacted poorly and all are growing like crazy... my peace lilies and Dracaena warneckii are beasts! Everyone else is healthy and happy, too. Highly recommend! Your plants will thank you." @shweet_potato

Shipping and Delivery


Flat rate shipping is $5.50 nationwide (or $9.50 for rural). Add as many products to your order as you like without paying anything extra for shipping. The only exceptions are plants and fragile or oversize products (like handmade pottery and coffee table books), which have their own rates. 

For $2 you can upgrade to signature required. Well worth it for anything valuable or limited edition that can't be replaced. Choosing signature required also gives both of us the ability to claim if anything goes wrong with the courier. Signature required is flat rate $7.50 nationwide (or $12.50 for rural).


Everything showing in stock online, is in stock right here, right now, in Auckland NZ, ready to pack and ship. No drop shipping from other countries. No delays.



Orders ship every week-day, Monday to Friday (except plants which only ship Mondays and Tuesdays). For everything else, if you order before 8pm Sunday through Thursday, your order's likely to be on the courier at 8am first thing, the next morning. Zoom zoom!


Normal delivery is 1 to 2 working days. Some regions can take longer, 3 to 4 working days is normally the longest wait, depending on where you're based (I'm based in Auckland).  

More about shipping and delivery > 



"Anna was brilliant. Order placed and sent the next day. Received in awesome packaging. Couldn’t ask for more... will definitely use you again and again and again. Highly recommend." Scott Guthrie 

Why choose to buy from Love That Leaf?


When you buy from me you're supporting a local, small, family business. Love That Leaf is a registered NZ business, based in Auckland. 


You'll also get your goodies super fast. Everything showing in stock on the website is right here, in stock, ready to ship to you. I ship daily, Monday to Friday. If you order by 8pm Sunday through Thursday, your order will be normally be on the courier at 8am the next morning. Zoom zoom!


I stand by everything I sell and will always help put right anything that goes wrong. When you choose to buy from a registered NZ business (like me), you're also covered by the Consumer Guarantees Act, unlike overseas purchases or private sales, where you can end up stuck with no rights if anything arrives damaged or stops working.


I won't go AWOL on you. I'm here for support and advice anytime.  I'm very happy to help, even if you haven't bought from me yet. A lot of lovely people helped me along my plant journey, and I want to pay it forward. Please don't hesitate to ask for help. 


"Super impressed with this business. Something that is lost nowadays, is customer service. This however is not the case with Anna from “Love that Leaf”. Very happy with my purchase, very happy with the product information provided and very happy with the quick shipping and great packaging. Thanks!" Melayna Anderson

"By far the best customer care I've had in a long time. Website is such a wealth of information and the email with instructions for use after my purchase was fantastic. The pipette for measuring the correct amount was such a great inclusion, and the personalised message on the package was very cool. Definitely my go to shop for plant supplies now. Thanks Love That Leaf! A+++" Karyn Wilson