Rootblast Once-a-Season Growth Formula 5 1/2 lb. Pouch

Because QVC's special offers are only available for a limited time, previously recorded videos may contain pricing, exclusivity claims or promotional offers that have expired.

product thumbnail

Optimize your garden's potential with the help of Rootblast. This easy-to-use formula is effective in producing bigger roots, which can lead to bigger plants and better yields. Rootblast works well on flowers, vegetables, trees, grass, shrubs, house plants, and seeds. Best of all, the application requires no mixing and mess, and only has to be done once a season.

  • Net weight 5.5 lbs

Delivery Date Estimate

Reviews & Community QA

Rated 4.6 out of 5 by 90 reviewers.
Rated 1 out of 5 by Disappointing I waited until the end of the season to write this review. I expected something special from this fertilizer. The blooms weren't any bigger or more of them this year. In fact some of the plants performed very badly. After our first frost,as I was pulling up the plants, I noticed that the roots were much bigger then usual but that didn't effect the blooms. I will not be buying this again. 11-12-16
Rated 5 out of 5 by Really Works My Impatiences should have lasted only one Season. They have been thriving over 3 Seasons, showing no sign of stoping. They spread from two planter boxes to the next. My neighbors tomato plant (in planter container) was almost dead. I gave him a little Root Blast. I be, it getting healthier leaves. It just may revive! We're talking funeral to life! 08-23-16
Rated 5 out of 5 by Bigger blooms My hydranga bushes have always grown tall with med. size blooms so when the flowers appeared and were gigantic in size I was "OVER JOYED". This is the BEST food for all plants I have ever used 07-07-16
Rated 5 out of 5 by Beyond expectations!! I am NOT a gardener, I have plants. My theory when I plant is, "I put you in the ground, I watered you, the rest is up to you." I have 4 hydrangea plants that I bought from Cottage farms at least 5 years ago, that have done so-so. On a whim, I bought the Rootblast after I saw a demo, and figured why not, maybe it will do something to help the hydrangeas. OH MY GOODNESS!!! Within WEEKS of putting this around the base of the plants, and watering it in, the plants have doubled in size, and there are more blooms growing then have EVER been produced on these plants. I also put it around my Heritage Rose, that had a very hard winter, and was looking very spindly. It EXPLODED with new growth and at least 20 blooms!! I don't understand the negative reviews, the only thing I can think is they didn't give it enough time to see results. This product does work, and it works amazingly!! 06-29-16
Rated 5 out of 5 by Excellent product! This is a God-send for all my established plants! They have shown the most growth, and held up in all weather, with more blooms, and larger ones, than ever before! And of course I use it on all transplants and garden veggies, etc! Excellent! This is my second order and I shared it with my Mom who is a gardener too! 06-06-16
Rated 5 out of 5 by Plants are huge! We have a really hard time growing anything successfully in this hot Florida sun. I ordered this for my husband and he put some on or around every single thing we have in the yard including herbs, tomatoes, peppers, and shrubs. Within 2-3 weeks, everything has doubled or tripled in size except for the shrubs. The shrubs were really sparse and now they are much fuller and producing buds. We love this so much that I ordered the 10-gallon bucket so that we would have it all season long. I don't believe you can find it anywhere but QVC so try it. You will be amazed. 04-29-16
Rated 5 out of 5 by Good choice I have recommended the purchase of Rootblast to several of my gardening friend's two day's ago. 03-20-16
Rated 5 out of 5 by Love This Stuff! I've used Rootblast since it first came to QVC and have always been happy with the results on flowers and veggies. My son asks every year (but last year) what I do since his garden doesn't do as well. Truthfully never occurred to me that Rootblast was the difference until today when I reordered for this season. Now I recall running out last season after treating my perennials but before planting my veggies. Worst veggie garden I ever had! I'm ready to plant but not before my order arrives! 03-15-16
  • 2017-01-18 T12:21:03.793-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_90, tr_90
  • loc_en_US, sid_M27228, prod, sort_default
MORE REVIEWS>> 2 3 4 5 ... 12

Let's Stay in Touch

* *You're signing up to receive QVC promotional email.
Connect with Us

The scoop on everything Q, from helpful tips to interesting tidbits, questions, answers, and more.

QVC is not responsible for the availability, content, security, policies, or practices of the above referenced third-party linked sites, nor liable for statements, claims, opinions, or representations contained therein. QVC's Privacy Statement does not apply to these third-party web sites.

© 1995–2017 QVC, Inc. All rights reserved. Trademark Notice

Desktop View Mobile View