How To Get 3 Wins With Weak Plant Heroes?

I just started playing yesterday and have both solar and shadows quests completed.  I have been doing much in single player so my rank is not too high yet so maybe thats a factor but heres my current deck lists for each.

Green Shadow (completed easily at rank 6):

1X pea pod

3X snow drop

2X torchwood

1X black eyed pea

2X snow pea

3X cattail

2X chilly pepper

3x fertilize

3x flourish

3x grow shroom

3x repeater

3x podfather

1x navy bean

1x plant food

3x skyshooter

3x threepeater

2x whipvine

1x super phat beets

Solar Flare (completed in wood league somewhere, also easy)

2x morning glory (might add more but havent played flare since)

4x shroom for 2

3x sunflower (might remove some of these, had em for mixed nuts)

4x berry blast

4x buff shroom

2x fume shroom

2x pepper md  (would rather have 2 more of these than mixed nuts)

2x mixed nuts

1x whack a zombie

2 x magnifying grass

3x metal petal sunflower

1x sour grapes

4x power flower

3x squash (2x and a lawnmower might be better)

1x cherry bomb

1x laser bean

1x grapes of wrath

So far it seems shadows tactic is related to careful conservation and positioning of units until they can utilize buffs to overpower the opposing zombie attempting to force the enemy to spend multiple cards to deal with it and then flourishing to win in card advantage late game.  The big power combo's I have seen are repeater and threepeater buffed but chilly pepper with a snowpea out is also a great way to get some efficient trades.  Whipvine, plant food, chilly pepper and buffs are the only pseudo removal I have.  I ran sweet potato for a while for removal until I got whipvine.  Iceburg lettuce also looks very effective both to benefit snowpea and for more pseudo removal via free shot.

Solar Flare's tactics seem a bit easier to grasp, lots of crowd control target removal with options like whack a zombie, berry blast, squash, sour grapes, magnifying grass, lawnmower, sizzle, water balloon and cherry bomb.  Flare also seems to excel at playing the mushroom early game as well as some ramp from metal petal, her sunburn ability and the occasional sunflower.  I dislike the basic sunflower but its ok with mixed nuts; I prefer the pepper md and power flower combo.  Flares biggest weakness is the complete lack of amphibious but has enough removal to mitigate that.

I only started yesterday so these are just my thoughts so far, not anywhere near experience enough to say if either hero is weak or strong or even if I am playing them correctly but it does feel like wall knight is better than flare to me because of the amphibious problem and about even with shadow.  Wall knight is my only other plant hero so idk how I would rank the others.