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Which fertiliser??

Good Morning
PIve been given some liquid seaweed, but I usually use tomato feed on my fruit and vegetables. Can I use both at the same time? If not what fruit or vegetables will benefit from using it, instead of tomato feed.
I was going to use the seaweed on my passion flower plants if they would benefit from it?
Big thanks for the help in advance. 


  • A lot of commercial liquid fertilisers already contain seaweed. Sea weed doesn't actually have much in the way of nutrients in it, but it does seem to stimulate plants
  • Pete.8Pete.8 Posts: 10,897
    Seaweed extract is great stuff, but as said above it's not a complete fertilizer.
    It does contain nitrogen (which is good for leaves). The rest is micro nutrients which helps to keep plants in good health.
    It can be used as a foliar feed or water it around the roots.
    Tomato feed is best for flowering and fruiting plants. Seaweed can also be given, but best not to do it at the same time or the fertilizer would be too strong. Give a couple of days between tomato feed and seaweed feed.
    I use seaweed on all plants inc. houseplants.

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • NollieNollie Posts: 7,319
    Some studies have shown that root and leaf vegetables like beetroot and salad leaves benefit from seaweed. Tomato feed is good for all fruiting vegetables like tomatoes, aubergines, peppers etc., once the flowers have set and started growing into little fruits but they wouldn’t mind a bit of seaweed earlier on either.
    Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
  • PlantmindedPlantminded Posts: 2,731
    In addition to the above, seaweed extract is good at perking up plants that might have suffered stress due to neglect or disease.  The tomato feed will promote flowering in your passion flower due to its high potassium content.  (Many flower growers use tomato feed in their pots and hanging baskets - garden centres often display it near bedding type plants!)
    Wirral. Sandy, free draining soil.

  • PlashingPlashing Posts: 328
    Some of the tomato food have seaweed extract already in it,  the one I use anyway, and I still use seaweed  extract on all my fruit and veg without any problems as well as tomato feed..
  • FairygirlFairygirl Posts: 53,924
    Seaweed is most beneficial for leafy growth. Tomato food has the necessary make up for flowering and fruiting plants. 
    It's a bit wasteful to keep using seaweed for the latter. 
    It's a place where beautiful isn't enough of a word....

    I live in west central Scotland - not where that photo is...
  • PlashingPlashing Posts: 328
    No it isn't I have had better yields since I have been using that formular so I will stick by it until I come a cropper.
  • So plashing Do you spray your leaves with seaweed and add tomatoes feed to the soil? At the same time or space out your feeds? 
  • NollieNollie Posts: 7,319
    No plant will come to any harm with seaweed 😊  But as that and tomato food are not cheap, best to concentrate the seaweed on leafy vegetables (the benefit to beetroot is leaf growth too) and early growth stages of fruiting plants, switching to the high potash tomato feed during the fruiting stage of the latter. There is no point to giving tomato food to non-fruiting crops as they don’t need it.
    Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
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